'Right Hand' in the Bible

So now if you are going to deal kindly and truly with my master, tell me; and if not, let me know, that I may turn to the right hand or the left.”

Joseph took them both, Ephraim with his right hand toward Israel’s left, and Manasseh with his left hand toward Israel’s right, and brought them close to him.

But Israel stretched out his right hand and laid it on the head of Ephraim, who was the younger, and his left hand on Manasseh’s head, crossing his hands, although Manasseh was the firstborn.

When Joseph saw that his father laid his right hand on Ephraim’s head, it displeased him; and he grasped his father’s hand to remove it from Ephraim’s head to Manasseh’s head.

Joseph said to his father, “Not so, my father, for this one is the firstborn. Place your right hand on his head.”