1 Corinthians 16:13 in the King James Version
Watch ye, stand fast in the faith, quit you like men, be strong.
Context
12 Now concerning Apollos the brother, I strongly urged him to come to you with the brothers, but it was not at all his desire to come now; but he will come when he has an opportunity.
13 Watch! Stand firm in the faith! Be courageous! Be strong!
14 Let all that you do be done in love.