1 Cor 16:13 Be on your guard; stand firm in the faith; be courageous; be strong. 14 Do everything in love. 15 You know that the household of Stephanas were the first converts in Achaia, and they have devoted themselves to the service of the Lord’s people. I urge you, brothers and sisters, 16 to submit to such people and to everyone who joins in the work and labors at it. 17 I was glad when Stephanas, Fortunatus and Achaicus arrived, because they have supplied what was lacking from you. 18 For they refreshed my spirit and yours also. Such men deserve recognition.
1 Cor 16:13 (NASB) Be on the alert, stand firm in the faith, act like men, be strong. 14 Let all that you do be done in love.
This is sound advice for men and fathers (and everyone by example). The first four are in the context of military service
1. Be on the alert
2. Stand firm in the faith
3. Act like men
4. Be strong
5. That all that you do be done in love
Greek word for "act like men" meaning, "to make a man of or make brave...to show one's self a man, be brave"