What does Abraham sending his servant for Isaac's bride represent?
Abraham's sending of his servant to obtain a bride for Isaac serves as a good illustration, not a strict type, of the Holy Spirit's work today. It parallels the Spirit going out to call out a bride for Christ. This seeking of a bride pictures the Holy Spirit's present calling of the bride for Christ.
Les explains that Genesis 24 comes close to a type but he shrinks back from calling it that because one detail would break down. So he calls it a good illustration. The account of Abraham sending his servant to get a bride for Isaac is at least a perfect parallel of what the Holy Spirit is doing today: calling out the bride for Christ. This continues the earlier picture in which Isaac, the son of promise, is a type of grace, while Ishmael, the son of the flesh, was depicted by Paul in Galatians as a picture of law.
And Abraham was old, and well stricken in age: and the LORD had blessed Abraham in all things.
More Questions
Why did Abraham's servant go to Abraham's relatives instead of to the Gentiles in the Genesis 24 bride story?
The small point where this analogy breaks down is that Abraham's servant was sent to Abraham's own kinfolk, not to the Gentiles, because the Gentiles as such had not yet been isolated as a distinct group in Scripture.