'Double Portion' in the Bible

But he shall acknowledge the son of the hated as the first-born by giving him a double portion of all that he has. For he is the beginning of his strength. The right of the first-born is his.

But to Hannah he gave one double portion, for he loved Hannah. But Jehovah had shut up her womb.

And it happened when they had gone over, Elijah said to Elisha. Ask what I shall do for you before I am taken away from you. And Elisha said, please, let a double portion of your spirit be upon me.