3 men who sacrificed their sons to false gods

Sacrificing children to false gods was common in the pagan nations of the anceint near east, and was copied by the Israelites. The Smaartians also engaged in this repulsive sin. Three individuals are identified as engaging in the practice as follows

A King of Moab

2 Kings 3:27 Then he took his firstborn son, who was to succeed him as king, and offered him as a sacrifice on the city wall. The fury against Israel was great; they withdrew and returned to their own land.

Ahaz

2 Kings 16:3 He followed the ways of the kings of Israel and even sacrificed his son in the fire, engaging in the detestable practices of the nations the LORD had driven out before the Israelites.

2 Chronicles 28:3 He burned sacrifices in the Valley of Ben Hinnom and sacrificed his children in the fire, engaging in the detestable practices of the nations the LORD had driven out before the Israelites.

Manasseh

2 Kings 21:6 He sacrificed his own son in the fire, practiced divination, sought omens, and consulted mediums and spiritists. He did much evil in the eyes of the LORD, arousing his anger.

2 Chronicles 33:6 He sacrificed his children in the fire in the Valley of Ben Hinnom, practiced divination and witchcraft, sought omens, and consulted mediums and spiritists. He did much evil in the eyes of the LORD, arousing his anger.

Also there is Jephthah in Judges, which is different, and Abraham, of course, in Genesis 22 but that is again quite a different story.

6 Unnamed Prophets in the Old Testament

1. Judges 6:7-10

When the Israelites cried out to the Lord because of Midian, he sent them a prophet, who said, “This is what the Lord, the God of Israel, says: I brought you up out of Egypt, out of the land of slavery. I rescued you from the hand of the Egyptians. And I delivered you from the hand of all your oppressors; I drove them out before you and gave you their land. I said to you, ‘I am the Lord your God; do not worship the gods of the Amorites, in whose land you live.’ But you have not listened to me.”

2. 1 Samuel 2:27-29

Now a man of God came to Eli and said to him, “This is what the LORD says: ‘Did I not clearly reveal myself to your ancestor’s family when they were in Egypt under Pharaoh? I chose your ancestor out of all the tribes of Israel to be my priest, to go up to my altar, to burn incense, and to wear an ephod in my presence. I also gave your ancestor’s family all the food offerings presented by the Israelites. Why do you scorn my sacrifice and offering that I prescribed for my dwelling? Why do you honour your sons more than me by fattening yourselves on the choice parts of every offering made by my people Israel?’

3. 1 Kings 13:1-3

By the word of the Lord a man of God came from Judah to Bethel, as Jeroboam was standing by the altar to make an offering. By the word of the Lord he cried out against the altar: “Altar, altar! This is what the Lord says: ‘A son named Josiah will be born to the house of David. On you he will sacrifice the priests of the high places who make offerings here, and human bones will be burned on you.’” That same day the man of God gave a sign: “This is the sign the Lord has declared: The altar will be split apart and the ashes on it will be poured out.”

4. 1 Kings 20:13, 22

Meanwhile a prophet came to Ahab king of Israel and announced, “This is what the Lord says: ‘Do you see this vast army? I will give it into your hand today, and then you will know that I am the Lord.’” ... Afterward, the prophet came to the king of Israel and said, “Strengthen your position and see what must be done, because next spring the king of Aram will attack you again.”

1 Kings 20:35-38

By the word of the Lord one of the company of the prophets said to his companion, “Strike me with your weapon,” but he refused. So the prophet said, “Because you have not obeyed the Lord, as soon as you leave me a lion will kill you.” And after the man went away, a lion found him and killed him. The prophet found another man and said, “Strike me, please.” So the man struck him and wounded him. Then the prophet went and stood by the road waiting for the king. He disguised himself with his headband down over his eyes.

5. 2 Kings 9:1-3

The prophet Elisha summoned a man from the company of the prophets and said to him, “Tuck your cloak into your belt, take this flask of olive oil with you and go to Ramoth Gilead. When you get there, look for Jehu son of Jehoshaphat, the son of Nimshi. Go to him, get him away from his companions and take him into an inner room. Then take the flask and pour the oil on his head and declare, ‘This is what the Lord says: I anoint you king over Israel.’ Then open the door and run; don’t delay!”

6. 2 Chronicles 25:15, 16

The anger of the Lord burned against Amaziah, and he sent a prophet to him, who said, “Why do you consult this people’s gods, which could not save their own people from your hand?” While he was still speaking, the king said to him, “Have we appointed you an adviser to the king? Stop! Why be struck down?” So the prophet stopped but said, “I know that God has determined to destroy you, because you have done this and have not listened to my counsel.”

4 Officers who come to Gedaliah 2 Kings 25:23

2 Kings 25:23

When all the army officers and their men heard that the king of Babylon had appointed Gedaliah as governor, they came to Gedaliah at Mizpah - 

Ishmael son of Nethaniah,

Johanan son of Kareah,

Seraiah son of Tanhumeth the Netophathite,

Jaazaniah the son of the Maakathite

 and their men. 

4 Times when God struck people blind

1. The men of Sodom
Genesis 19:5-9

They called to Lot, "Where are the men who came to you tonight? Bring them out to us so that we can have sex with them." Lot went outside to meet them and shut the door behind him and said, "No, my friends. Don't do this wicked thing. Look, I have two daughters who have never slept with a man. Let me bring them out to you, and you can do what you like with them. But don't do anything to these men, for they have come under the protection of my roof." "Get out of our way," they replied. "This fellow came here as a foreigner, and now he wants to play the judge! We'll treat you worse than them." They kept bringing pressure on Lot and moved forward to break down the door. But the men inside reached out and pulled Lot back into the house and shut the door. Then they struck the men who were at the door of the house, young and old, with blindness so that they could not find the door. 

2. The Assyrians in the time of Elisha
2 Kings 6:13-18

"Go, find out where he is," the king ordered, "so I can send men and capture him." The report came back: "He is in Dothan." Then he sent horses and chariots and a strong force there. They went by night and surrounded the city. When the servant of the man of God got up and went out early the next morning, an army with horses and chariots had surrounded the city. "Oh no, my lord! What shall we do?" the servant asked. "Don't be afraid," the prophet answered. "Those who are with us are more than those who are with them." And Elisha prayed, "Open his eyes, LORD, so that he may see." Then the LORD opened the servant's eyes, and he looked and saw the hills full of horses and chariots of fire all around Elisha. As the enemy came down toward him, Elisha prayed to the LORD, "Strike this army with blindness." So he struck them with blindness, as Elisha had asked.

3. Saul of Tarsus on the Damascius Road
Acts 9:3-9 (also see Acts 22, 26)

As he neared Damascus on his journey, suddenly a light from heaven flashed around him.  He fell to the ground and heard a voice say to him, "Saul, Saul, why do you persecute me?" "Who are you, Lord?" Saul asked. "I am Jesus, whom you are persecuting," he replied. "Now get up and go into the city, and you will be told what you must do."  The men travelling with Saul stood there speechless; they heard the sound but did not see anyone. Saul got up from the ground, but when he opened his eyes he could see nothing. So they led him by the hand into Damascus. For three days he was blind, and did not eat or drink anything.

4. Elymas the sorcerer who opposed Paul
Acts 13:6-12

They travelled through the whole island until they came to Paphos. There they met a Jewish sorcerer and false prophet named Bar-Jesus, who was an attendant of the proconsul, Sergius Paulus. The proconsul, an intelligent man, sent for Barnabas and Saul because he wanted to hear the word of God. But Elymas the sorcerer (for that is what his name means) opposed them and tried to turn the proconsul from the faith. Then Saul, who was also called Paul, filled with the Holy Spirit, looked straight at Elymas and said, "You are a child of the devil and an enemy of everything that is right! You are full of all kinds of deceit and trickery. Will you never stop perverting the right ways of the Lord? Now the hand of the Lord is against you. You are going to be blind for a time, not even able to see the light of the sun." Immediately mist and darkness came over him, and he groped about, seeking someone to lead him by the hand. When the proconsul saw what had happened, he believed, for he was amazed at the teaching about the Lord.