וַיּוֹצֵ֥א יוֹסֵ֛ף אֹתָ֖ם מֵעִ֣ם בִּרְכָּ֑יו וַיִּשְׁתַּ֥חוּ לְאַפָּ֖יו אָֽרְצָה׃
And Joseph brought them out from between his knees; and he fell down on his face to the earth.
Read midrashic interpretation of Genesis 48:12: and classical rabbinic exegesis.