2 Timothy 2:13

If we prove to be unfaithful [i.e., to our commitment to Christ], He [still] remains faithful [to His word], for He cannot deny Himself. [Note: This verse refers to Christ remaining true to His promise of either accepting or rejecting us. See Matt. 10:32-33].

Revelation 15:3-4

And they were singing the song of Moses, the servant of God, and the song of the Lamb. [The words were], "Your deeds are great and marvelous, O Lord, God Almighty; your ways are just and true, O King of the nations [or, "ages"].

Treasury of Scripture Knowledge

Summary

The works of his hands are verity and judgment; all his commandments are sure.

Bible References

Works

2 Timothy 2:13
If we prove to be unfaithful [i.e., to our commitment to Christ], He [still] remains faithful [to His word], for He cannot deny Himself. [Note: This verse refers to Christ remaining true to His promise of either accepting or rejecting us. See Matt. 10:32-33].
Revelation 15:3
And they were singing the song of Moses, the servant of God, and the song of the Lamb. [The words were], "Your deeds are great and marvelous, O Lord, God Almighty; your ways are just and true, O King of the nations [or, "ages"].