Psalm 86:16 New English Translation

¹⁶Turn toward me and have mercy on me.
Give your servant your strength.
Deliver this son of your female servant.^[a]

Psalm 86:16 tn Heb “the son of your female servant.” The phrase “son of a female servant” (see also Ps 116:16) is used of a son born to a secondary wife or concubine (Exod 23:12). In some cases the child’s father is the master of the house (see Gen 21:10, 13; Judg 9:18). The phrase may be used metaphorically and idiomatically to emphasize the psalmist’s humility before the Lord and his status as the Lord’s servant. Or it may be a reference to the psalmist’s own mother who also was a servant of the Lord.

New English Translation (NET)