And Jacob kissed Rachel,—in demonstration of his cousinly affection. If Jacob had not yet discovered who he was to the fair shepherdess, his behavior must have filled her with surprise, even allowing for the unaffected simplicity of the times; but the fact that she does not resent his conduct as an undue liberty perhaps suggests that he had first informed her of his relationship to the inmates of Laban's house (Calvin).
On kissing vide Genesis 27:26—and lifted up his voice, and wept—partly for joy in finding his relatives (cf. Genesis 43:30; Genesis 45:2, Genesis 45:14, Genesis 45:15); partly in grateful acknowledgment of God's kindness in conducting him to his mother's brother's house.