A.T. Robertson Commentary 1 Corinthians 16:13

"Watch ye, stand fast in the faith, quit you like men, be strong." — 1 Corinthians 16:13 (ASV)

Watch ye (γρηγορειτε). Stay awake. Late present from εγρηγορα second perfect of εγειρω, to awake.

Quit you like men (ανδριζεσθε). Play the man. Middle voice, show yourselves men. From ανηρ, a man.