1 Corinthians 14:4

14:4 The one who speaks in a tongue builds himself up, ¹  but the one who prophesies builds up the church.

1 Corinthians 14:6

14:6 Now, brothers and sisters, ²  if I come to you speaking in tongues, how will I help you unless I speak to you with a revelation or with knowledge or prophecy or teaching?

[14:4]  ¹ sn The Greek term builds (himself) up does not necessarily bear positive connotations in this context.

[14:6]  ² tn Grk “brothers.” See note on the phrase “brothers and sisters” in 1:10.