Charles H. Spurgeon on Psalms 145:18

The LORD is nigh unto all them that call upon him. Not only near by his omnipresence, but to sympathize and favour. He does not leave praying men, and men who confess his name, to battle with the world alone, but he is ever at their side. This favour is not for a few of those who invoke him; but for each one of the pious company. "All" who place themselves beneath the shield of his glorious name by calling themselves by it, and by calling upon it in supplication, shall find him to be a very present help in trouble. "To all that call upon him in truth": for there are many whose formal prayers and false professions will never bring them into communion with the Lord. To pray in truth, we must have a true heart, and the truth in our heart; and then we must be humble, for pride is a falsehood; and be earnest, or else prayer is a lie. A God of truth cannot be nigh to the spirit of hypocrisy; this he knows and hates; neither can he be far removed from a sincere spirit, since it is his work, and he forsakes not the work of his own hands.