“skin-bottle.” A “bottle” or container made from animal skin. [For more on skin-bottles, which were usually made from the skins of goats, see commentary on 1 Sam. 10:3].
“gave her the child.” According to the custom of the biblical world, the child of a slave born in a master’s house belonged to the master (Exod. 21:4), so Abraham had to give Hagar her son.