2 Timothy 2:13

If we are unfaithful, He continueth faithful notwithstanding; He cannot renounce Himself.

Romans 3:3

For what if some did not believe? shall their incredulity make the faithfulness of God of no effect?

Titus 1:2

in hope of eternal life, which God, who cannot lie, promised before all ages;

Matthew 24:35

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

Romans 9:6

Not that the word of God hath failed. For they are not all Israel, who are descended from Israel.

1 Corinthians 1:9

for God is faithful by whom ye were called into the communion of his son Jesus Christ our Lord.

1 Thessalonians 5:24

Faithful is He that calleth you, who also will do it.

2 Thessalonians 3:3

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

Hebrews 6:18

that by two immutable things, in which it is impossible for God to fail, we might have strong consolation, who have fled for refuge to lay hold on 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 shall not pass away.
Romans 3:3
For what if some did not believe? shall their incredulity make the faithfulness of God of no effect?
Romans 9:6
Not that the word of God hath failed. For they are not all Israel, who are descended from Israel.
1 Thessalonians 5:24
Faithful is He that calleth you, who also will do it.
2 Thessalonians 3:3
But the Lord is faithful, who will establish you, and preserve you from the evil one.

He cannot

Titus 1:2
in hope of eternal life, which God, who cannot lie, promised before all ages;
Hebrews 6:18
that by two immutable things, in which it is impossible for God to fail, we might have strong consolation, who have fled for refuge to lay hold on the hope set before us;