Submission to Spiritual Leadership

One mark of a positive response to the gospel is love. The particular expression of love mentioned here is fellowship love.The Jewish readers were having a hard time breaking with the Old Covenant, with the Temple and the sacrifices. They were still holding on to the legalism and ritual and ceremony, the outward things of Judaism. So the writer is telling them that one of the best ways to hold fast to the things of God—the real things of God that are found only in the New Covenant of Jesus Christ—is to be in the fellowship of His people, where they could love and be loved, serve and be served. There is no better place to come all the way to faith in Christ, or to hope continually in Him, than the church, His Body.

The day drawing near could refer to the imminent destruction of the Temple, which brought all the sacrifices and rituals to a close. The Old Covenant simply could not function without the Temple, which, when the book of Hebrews was written, was about to be destroyed by Titus. But I believe the primary reference is to the coming of the Lord, which makes the passage apply to all of us. The only place where we can remain steadfast until He returns is with His people. We need each other. We need to be in fellowship with each other, as we mutually strengthen each other and encourage each other... http://www.macarthurcommentaries.com