Genesis 48:13

And Joseph took them both, Ephraim in his right hand toward
Israel's left hand
He took Ephraim his youngest son in his right hand, and led him up to his father, by which means he would stand in a right position to have his grandfather's left hand put upon him: and Manasseh in his left hand toward Israel's right hand;
Manasseh his eldest son he took in his left hand, and brought him to his father, and so was in a proper position to have his right hand laid upon him, as seniority of birth required, and as he was desirous should be the case: and brought [them] near unto him;
in the above manner, so near as that he could lay his hands on them.