Therefore am I troubled at his presence: when I consider, I am afraid of him.

And therefore I am troubled at his presence, and when I consider him I am made pensive with fear.

For this cause I am in fear before him, my thoughts of him overcome me.

Therefore am I affrighted at His presence; When I consider, I am afraid of Him.

And, for this reason, I have been troubled at his presence, and, when I consider him, I am approached by fear.

Therefore am I troubled at his presence - The doctrine of divine purposes and decrees "is fitted to impress the mind with awe." So vast are the plans of God; so uncertain to us is it what will be developed next; so impossible is it to resist God when he comes forth to execute his plans, that they fill the mind with reverence and fear. And this is one of the objects for which the doctrine is revealed. It is designed to rebuke the soul that is filled with flippancy and self-conceit; to impress the hcart with adoring views of God, and to secure a proper reverence for his government. Not knowing what may be the next development of his plan, the mind should be in a state of holy fear - yet ready to submit and bow in whatever aspect his purposes may be made known. A Being, who has an eternal plan, and who is able to accomplish all that he purposes, and who makes known none of his dealings beforehand, should be an object of veneration and fear. It will not be the same "kind of dreadful fear" which we would have of one who had almighty power, but who had "no plan" of any kind, but profound veneration for one who is infinitely wise as well as almighty. The fear of an Almighty Being, who has an eternal plan, which we cannot doubt is wise, though it is inscrutable to us, is a fear mingled with confidence; it is awe leading to the profoundest veneration. His eternal counsels may take away "our" comforts, but they are right; his coming forth may fill us with awe, but we shall venerate and love him.
When I consider - When I endeavor to understand his dealings; or when I think closely on them.
I am afraid of him - This would be the effect on any mind. A man that will sit down alone and "think" of God, and on his vast plans, will see that there is abundant occasion to be in awe before him.

Therefore am I troubled - I do not as yet see an end to my afflictions: he has not exhausted his means of trial; therefore, when I consider this, I am afraid of him.

Therefore am I troubled at his presence,.... Not at his gracious presence, which he wanted, and every good man desires; but at his appearance as an enemy, as he apprehended him, laying and continuing his afflictive hand upon him, and indeed at his appearance as a Judge to try his cause; for though he had most earnestly desired it, yet when he thought of the sovereignty of God, and the immutability of his counsels, and of his perfect knowledge of all things; and he not knowing what he had with him, and to bring out against him, when he came to the point, might be troubled and shrink back, see Psalm 77:3;
when I consider, I am afraid of him: when he considered his terrible majesty, his sovereign will, his unalterable purposes, his infinite wisdom, and almighty power, his strict justice, and spotless purity; he was afraid to appear before him, or afraid that since many such things were with him he had already experienced, there were more to be brought forth, which might be greater and heavier still.

God's decrees, impossible to be resisted, and leaving us in the dark as to what may come next, are calculated to fill the mind with holy awe [BARNES].