the knees.

Genesis 30:3
Then she said, "Here is my maidservant Bilhah. Sleep with her, and she will bear children for me, so that through her I too can build a family."

Genesis 50:23
He saw Ephraim's sons to the third generation, and indeed the sons of Machir son of Manasseh were brought up on Joseph's knees.

Isaiah 66:12
For this is what the LORD says: I will extend peace to her like a river, and the wealth of nations like a flowing stream; you will nurse and be carried on her arm, and bounced upon her knees.

Ezekiel 16:4, 5
On the day of your birth your cord was not cut, nor were you washed with water for cleansing. You were not rubbed with salt or wrapped in cloths. . . .