'Dependent' in the Bible

Ahaz sent messengers to King Tiglath-pileser of Assyria, saying, "I am your servant and your dependent. March up and rescue me from the power of the king of Syria and the king of Israel, who have attacked me."

I have been dependent on you since birth; from the time I came out of my mother's womb you have been my God.

Hear my prayer, O Lord! Listen to my cry for help! Do not ignore my sobbing! For I am dependent on you, like one residing outside his native land; I am at your mercy, just as all my ancestors were.