“For you need endurance, so that after you have done the will of God, you may receive the fulfillment of the promise.”
~Hebrews 10:36

The work “Insight on the Scriptures” explains that “endurance” in ancient Greek means to “stand one’s ground; persevere; remain steadfast,” and “not lose hope in the face of obstacles.”
Jesus had to wait patiently to receive his heavenly blessings after sacrificing his life, and we do well to imitate his patient attitude. (Heb. 10:12,13)
He taught that what we do towards the end of our Christian ministry counts for more than what we did at the start. (Matt. 24:13; Luke 21:19)
We demonstrate endurance when we look for strength in God’s Word and through prayer, instead of looking for quick and easy short-term solutions to our problems. (Rom. 15:4,5; Jas. 1:5)
We can then face problems with a positive attitude, knowing that without them, we would not have had a chance to demonstrate our faith/hone our Christian qualities. (Rom. 5:3-5; Jas. 1:2-4)
Though God’s promises might sometimes feel like they are too far off, endurance helps us remember that they “will not delay.” (Heb. 10:37)