<b>Go into the wilderness to meet Moses (Exod. 4:27).</b> Scripture states elsewhere in allusion to this verse: <i>Mercy and truth are met together; righteousness and peace have kissed each other</i> (Ps. 85:11). <i>Mercy</i> refers to Aaron, as it is said: <i>And of Levi he said: Thy Thummin and Thy Urim be with thy Merciful One</i> (Deut. 33:8). While <i>truth</i> alludes to Moses, as is said: <i>He is trusted in all My house</i> (Num. 12:7). Hence, <i>Mercy and truth are met together; righteousness and peace have kissed each other. Righteousness</i> refers to Moses, as it is said: <i>He executed the righteousness of the Lord</i> (Deut. 33:21), while <i>peace</i> applies to Aaron, as is said: <i>He walked with me in peace and righteousness</i> (Mal. 11:6).
<i>Have kissed each other</i> (Ps. 85:11) tells us that he kissed him. Our rabbis teach us that all but three kinds of kisses are frivolous. Those not frivolous are the kiss of parting, the kiss of homage, (and) the kiss of reunion. How do we know about the kiss of parting? From the fact that it is written: <i>And Orpah kissed her mother-in-law Ruth</i> (Ruth 1:14); the kiss of homage we know from what is written: <i>Then Samuel took the vial of oil, poured it upon his head, and kissed him</i> (I Sam. 10:1); we know about the kiss of reunion because it is written: <i>And he went, and met him in the mountain of God and kissed him</i> (Exod. 2:27).