2 Timothy 2:13

if we are unfaithful, he remains faithful; for he is not able to deny himself.

Romans 3:3

For what if some did not believe? whether will their unbelief destroy the faith of God?

Titus 1:2

in the hope of eternal life, which God who cannot lie, promised before the eternal times,

Matthew 24:35

Heaven and earth shall pass away, but my words can not pass away.

Romans 9:6

But not as that the word of God has been a failure. For these are not all Israel who are of Israel;

1 Corinthians 1:9

God is faithful, through whom you have been called unto the fellowship of His Son our Lord Jesus Christ.

1 Thessalonians 5:24

Faithful is the one calling you, who indeed will do it.

2 Thessalonians 3:3

But the Lord is faithful, who will establish you and keep you from the evil one.

Hebrews 6:18

that through two immutable things in which it was impossible that God should lie, we who have fled may have a strong consolation to lay hold of the hope set before us,

Treasury of Scripture Knowledge

Summary

If we believe not, yet he abideth faithful: he cannot deny himself.

Bible References

Yet

Matthew 24:35
Heaven and earth shall pass away, but my words can not pass away.
Romans 3:3
For what if some did not believe? whether will their unbelief destroy the faith of God?
Romans 9:6
But not as that the word of God has been a failure. For these are not all Israel who are of Israel;
1 Thessalonians 5:24
Faithful is the one calling you, who indeed will do it.
2 Thessalonians 3:3
But the Lord is faithful, who will establish you and keep you from the evil one.

He cannot

Titus 1:2
in the hope of eternal life, which God who cannot lie, promised before the eternal times,
Hebrews 6:18
that through two immutable things in which it was impossible that God should lie, we who have fled may have a strong consolation to lay hold of the hope set before us,