6 types of material a person may metaphorically build the church with

1 Corinthians 3:11-15

For no one can lay any foundation other than the one already laid, which is Jesus Christ. If anyone builds on this foundation using

gold,

silver,

costly stones,

wood,

hay

or straw,

their work will be shown for what it is, because the Day will bring it to light. It will be revealed with fire, and the fire will test the quality of each person's work. If what has been built survives, the builder will receive a reward. If it is burned up, the builder will suffer loss but yet will be saved - even though only as one escaping through the flames.