1 Corinthians 9:26; 1 Corinthians 14:9

1 Corinthians 9:26

26 I therefore so run, not as uncertainly; so fight I, not as one that beateth the air:

1 Corinthians 14:9

9 So likewise ye, except ye utter by the tongue words easy to be understood, how shall it be known what is spoken? for ye shall speak into the air.