2 Timothy 2:19 2Tim. 2:19 Foundation .. of a house - the House of God. Foundation = in this context it seems the foundtion of God he speaks of is the church - cf. 1 Timothy 3:15 Yet the foundation of the church which God had laid remained firm; compare Ephesians 2:20, Stands = Ἕστηκεν standeth, in contrast with overthrow (2 Timothy 2:18). Seal .. A seal is used for security Matthew 27:66, or as a mark of genuineness; Revelation 9:4. The seal here is one that was affixed to the foundation, and seems to refer to some inscription on the foundation-stone which always remained there, and which denoted the character and design of the edifice. (Barnes) Comp. Deuteronomy 6:9; Deuteronomy 11:20; Revelation 21:14. There are two inscriptions on the foundation stone, the one guaranteeing the security, the other the purity, of the church.