Strong G1128 γυμνάζω gumnazō · to train

Hebrews

1. Hebrews 5:14
   But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.
2. Hebrews 12:11
   Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby.