Titus 1:2

In hope of eternal life, which God, who cannot lie, promised before the world began;

2 Corinthians 12:9

But he said to me, My grace is sufficient for thee; for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my weaknesses, that the strength of Christ may rest upon me.

Philippians 4:13

I can do all things through Christ strengthening me.

2 Timothy 2:13

if we deny him, he will also deny us: If we believe not, he remaineth faithful; he cannot deny himself.

Hebrews 6:18

That by two unchangeable things, in which it was impossible for God to lie, we might have strong consolation, who have fled to lay hold on the hope set before us:

Treasury of Scripture Knowledge

Summary

And also the Strength of Israel will not lie nor repent: for he is not a man, that he should repent.

Bible References

Strength

2 Corinthians 12:9
But he said to me, My grace is sufficient for thee; for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my weaknesses, that the strength of Christ may rest upon me.
Philippians 4:13
I can do all things through Christ strengthening me.

Will not lie

2 Timothy 2:13
if we deny him, he will also deny us: If we believe not, he remaineth faithful; he cannot deny himself.
Titus 1:2
In hope of eternal life, which God, who cannot lie, promised before the world began;
Hebrews 6:18
That by two unchangeable things, in which it was impossible for God to lie, we might have strong consolation, who have fled to lay hold on the hope set before us: