When Abraham sent his servant to find a wife for Isaac, he did not send him alone. He sent him with a promise sealed by an oath. Targum Pseudo-Jonathan sharpens the moment: the God whose throne is in the heavens on high, the God who took Abraham from his father's house and from the land of his birth, the God who swore the land to Isaac's seed — that God, Abraham says, "will send His angel in season, and thou shalt take a wife for my son from thence" (Genesis 24:7).
Read the words slowly. Abraham does not promise success. He promises company. The angel is not a guarantee of outcome; the angel is a guarantee of presence. The servant is going to a strange country with a strange mission, and Abraham tells him: you will not walk this road alone.
Notice the verbs Abraham stacks together. God took him. God spoke to him. God swore to him. Each verb is a memory Abraham is handing his servant like a torch. Whatever you feel on the road, the servant is told, remember that the God who began this journey finishes journeys. The same One who uprooted me from Ur will plant a wife for my son in Aram.
The Aramaic phrase "in season" (b'idana) matters. The angel does not arrive early. The angel does not arrive late. The angel arrives at the hour the servant needs him — which, as the chapter will show, is the hour he stops at a well and lifts a prayer.
Abraham's lesson, packed into one verse: when you send someone on a holy errand, send them with a story of how God has acted before. That memory is the first angel.