Exodus 18:7

18:7 Moses went out to meet his father-in-law and bowed down and kissed him; they each asked about the other’s welfare, and then they went into the tent.

sn This is more than polite oriental custom. Jethro was Moses’ benefactor, father-in-law, and a priest. He paid much respect to him. Now he could invite Jethro into his home (see B. Jacob, Exodus, 496).