1 Corinthians 16:13

Be watchful, stand fast in the faith, behave like men, be strong:

Ephesians 6:10

Moreover, my brethren, strengthen yourselves in the Lord, and in his mighty power.

Treasury of Scripture Knowledge

Summary

Therefore now let your hands be strengthened, and be ye valiant: for your master Saul is dead, and also the house of Judah have anointed me king over them.

Bible References

Let your

1 Corinthians 16:13
Be watchful, stand fast in the faith, behave like men, be strong:
Ephesians 6:10
Moreover, my brethren, strengthen yourselves in the Lord, and in his mighty power.