Ephesians 2:8

For by grace are you saved through the faith; and that not of you; [it is] the gift of God;

Colossians 1:11

being strengthened with all power, according to his glorious power, for all patience and long suffering with joy;

2 Timothy 4:17

but the Lord stood by me, and strengthened me, that the word should be fully declared by me, and all the nations should hear, and I was delivered from the mouth of the lion.

Treasury of Scripture Knowledge

Summary

But the salvation of the righteous is of the LORD: he is their strength in the time of trouble.

Bible References

Strength

Colossians 1:11
being strengthened with all power, according to his glorious power, for all patience and long suffering with joy;
2 Timothy 4:17
but the Lord stood by me, and strengthened me, that the word should be fully declared by me, and all the nations should hear, and I was delivered from the mouth of the lion.