Exodus 2:2-3

2and she became pregnant and gave birth to a son. When she saw that he was a fine child, she hid him for three months. 3But when she could hide him no longer, she got a papyrus basket The Hebrew can also mean ark, as in Gen. 6:14. for him and coated it with tar and pitch. Then she placed the child in it and put it among the reeds along the bank of the Nile.