How do we know that Christ's return is not imminent?

According to 2 Thessalonians 2:3, Paul's admonition to the church highlights that there will be a falling away and the man of sin will be revealed before Christ's return. This teaches believers to be discerning regarding claims of imminent return. It emphasizes the importance of waiting for God's timing, which is perfect and known only to Him. Such clarity provides assurance to the faithful that they have time to grow in grace and be about the Lord's work, rather than being preoccupied by speculation of when Christ will come.