Wherefore be ye not unwise, but understanding what the will of the Lord is.
Ephesians 5:17
King James Version (public domain)
Traditionally attributed to Paul · 1st century AD · Thirteen epistles of the New Testament are traditionally attributed to him
Context
15See then that ye walk circumspectly, not as fools, but as wise,
16Redeeming the time, because the days are evil.
17Wherefore be ye not unwise, but understanding what the will of the Lord is.
18And be not drunk with wine, wherein is excess; but be filled with the Spirit;
19Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;