Matthew 5:34 in the King James Version
But I say unto you, Swear not at all; neither by heaven; for it is God’s throne:
Context
33 “Again you have heard that it was said to the ancient ones, ‘You shall not make false vows, but shall perform to the Lord your vows,’
34 but I tell you, don’t swear at all: neither by heaven, for it is the throne of God;
35 nor by the earth, for it is the footstool of his feet; nor by Jerusalem, for it is the city of the great King.