Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to {i} stand before the Son of man.

(i) You will appear before him in a condition such that you will abide the presence and sentence of the Judge without fear.

People's New Testament

21:34-36 Take heed to yourselves. The words here, but not the ideas, are peculiar to Luke. See notes on Mt 24:37-51.

Wesley's Notes

21:36 Watch ye therefore - This is the general conclusion of all that precedes. That ye may be counted worthy - This word sometimes signifies an honour conferred on a person, as when the apostles are said to be counted worthy to suffer shame for Christ, Acts 5:41. Sometimes meet or becoming: as when John the Baptist exhorts, to bring fruits worthy of repentance, Lu 3:8. And so to be counted worthy to escape, is to have the honour of it, and to be fitted or prepared for it. To stand - With joy and triumph: not to fall before him as his enemies.

Jamieson-Fausset-Brown Bible Commentary

36. Watch . pray, &c.-the two great duties which in prospect of trial are constantly enjoined. These warnings, suggested by the need of preparedness for the tremendous calamities approaching, and the total wreck of the existing state of things, are the general improvement of the whole discourse, carrying the mind forward to Judgment and Vengeance of another kind and on a grander and more awful scale-not ecclesiastical or political but personal, not temporal but eternal-when all safety and blessedness will be found to lie in being able to "STAND BEFORE THE Son of Man" in the glory of His personal appearing.

Matthew Henry's Concise Commentary

21:29-38 Christ tells his disciples to observe the signs of the times, which they might judge by. He charges them to look upon the ruin of the Jewish nation as near. Yet this race and family of Abraham shall not be rooted out; it shall survive as a nation, and be found as prophesied, when the Son of man shall be revealed. He cautions them against being secure and sensual. This command is given to all Christ's disciples, Take heed to yourselves, that ye be not overpowered by temptations, nor betrayed by your own corruptions. We cannot be safe, if we are carnally secure. Our danger is, lest the day of death and of judgment should come upon us when we are not prepared. Lest, when we are called to meet our Lord, that be the furthest from our thoughts, which ought to be nearest our hearts. For so it will come upon the most of men, who dwell upon the earth, and mind earthly things only, and have no converse with heaven. It will be a terror and a destruction to them. Here see what should be our aim, that we may be accounted worthy to escape all those things; that when the judgements of God are abroad, we may not be in the common calamity, or it may not be that to us which it is to others. Do you ask how you may be found worthy to stand before Christ at that day? Those who never yet sought Christ, let them now go unto him; those who never yet were humbled for their sins, let them now begin; those who have already begun, let them go forward and be kept humbled. Watch therefore, and pray always. Watch against sin; watch in every duty, and make the most of every opportunity to do good. Pray always: those shall be accounted worthy to live a life of praise in the other world, who live a life of prayer in this world. May we begin, employ, and conclude each day attending to Christ's word, obeying his precepts, and following his example, that whenever he comes we may be found watching.