2 Chronicles 19:4

And Jehoshaphat dwelt at Jerusalem; and he went out again through the people from Beersheba, on the extreme southern boundary, to Mount Ephraim, where the northernmost cities under his jurisdiction were situated, and brought them back unto the Lord God of their fathers, by reappointing the commissioners of religious instruction and thus renewing the people's knowledge of the Lord and of His holy Law. It is a most dangerous thing for the children of God to make friends with ungodly, wicked people. If anyone loves the world, the love of the Father is not in him. The damage done by such forbidden friendship is usually corrected only by a repentance which is zealous to return to the Lord and to perform His holy will.