Ephesians 2:8

For by grace ye are saved through faith, and this not of yourselves; it is the gift of God:

Colossians 1:11

strengthened with all might, according to his glorious power, unto all patience and long-suffering with joy;

2 Timothy 4:17

but the Lord stood by me, and strengthened me, that by me the preaching might be fully discharged, and that all the Gentiles might hear; and I was snatched out of the lion's mouth.

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
strengthened with all might, according to his glorious power, unto all patience and long-suffering with joy;
2 Timothy 4:17
but the Lord stood by me, and strengthened me, that by me the preaching might be fully discharged, and that all the Gentiles might hear; and I was snatched out of the lion's mouth.