'Substance' in the Bible

I praise and appreciate you because you remember me in everything and you firmly hold to the traditions [the substance of my instructions], just as I have passed them on to you.

For you tolerate it if anyone makes you his slave; or devours you and your possessions; or takes advantage of you; or acts presumptuously; or hits you in the face.

Such things are only a shadow of what is to come and they have only symbolic value; but the substance [the reality of what is foreshadowed] belongs to Christ.

Then I fell down at his feet to worship him, but he [stopped me and] said to me, “You must not do that; I am a fellow servant with you and your brothers and sisters who have and hold the testimony of Jesus. Worship God [alone]. For the testimony of Jesus is the spirit of prophecy [His life and teaching are the heart of prophecy].”