Genesis 31:49-51

Young's Literal Translation

⁴⁹ Mizpah also, for he said, `Jehovah doth watch between me and thee, for we are hidden one from another;

⁵⁰ if thou afflict my daughters, or take wives beside my daughters -- there is no man with us -- see, God [is] witness between me and thee.'

⁵¹ And Laban saith to Jacob, `Lo, this heap, and lo, the standing pillar which I have cast between me and thee;