Matthew 19:3

When Jesus had finished these words, he departed from Galilee and came into the borders of Judea beyond the Jordan.

Great multitudes followed him, and he healed them there.

He answered, “Haven’t you read that he who made them from the beginning made them male and female,

and said, ‘For this cause a man shall leave his father and mother, and shall be joined to his wife; and the two shall become one flesh’?

So that they are no more two, but one flesh. What therefore God has joined together, don’t let man tear apart.”