Psalmen 90:12

David is the most probable author; and the pestilence, mentioned in Sa2 24:13-15, the most probable of any special occasion to which the Psalm may refer. The changes of person allowable in poetry are here frequently made. (Psa. 91:1-16) dwelleth in the secret place-- (Psa 27:5; Psa 31:20) denotes nearness to God. Such as do so abide or lodge secure from assaults, and can well use the terms of trust in Psa 91:2.

So teach us to number our days,.... Not merely to count them, how many they are, in an arithmetical way; there is no need of divine teachings for that; some few instructions from an arithmetician, and a moderate skill in arithmetic, will enable persons not only to count the years of their lives, but even how many days they have lived: nor is this to be understood of calculating or reckoning of time to come; no man can count the number of days he has to live; the number of his days, months, and years, is with the Lord; but is hid from him: the living know they shall die; but know not how long they shall live, and when they shall die: this the Lord teaches not, nor should we be solicitous to know: but rather the meaning of the petition is, that God would teach us to number our days, as if the present one was the last; for we cannot boast of tomorrow; we know not but this day, or night, our souls may be required of us: but the sense is, that God would teach us seriously to meditate on, and consider of, the shortness of our days; that they are but as a shadow, and there is no abiding; and the vanity and sinfulness of them, that so we may not desire to live here always; and the troubles and sorrows of them, which may serve to wean us from the world, and to observe how unprofitably we have spent them; which may put us upon redeeming time, and also to take notice of the goodness of God, that has followed us all our days, which may lead us to repentance, and engage us in the fear of God: that we may apply our hearts unto wisdom; to consider our latter end, and what will become of us hereafter; which is a branch of wisdom so to do; to seek the way of salvation by Christ; to seek to Christ, the wisdom of God, for it; to fear the Lord, which is the beginning of wisdom; and to walk…

These are the petitions of this prayer, grounded upon the foregoing meditations and acknowledgments. Is any afflicted? Let him learn thus to pray. Four things they are here directed to pray for: - I. For a sanctified use of the sad dispensation they were now under. Being condemned to have our days shortened, "Lord, teach us to number our days (Psa 90:12); Lord, give us grace duly to consider how few they are, and how little a while we have to live in this world." Note, 1. It is an excellent art rightly to number our days, so as not to be out in our calculation, as he was who counted upon many years to come when, that night, his soul was required of him. We must live under a constant apprehension of the shortness and uncertainty of life and the near approach of death and eternity. We must so number our days as to compare our work with them, and mind it accordingly with a double diligence, as those that have no time to trifle. 2. Those that would learn this arithmetic must pray for divine instruction, must go to God, and beg of him to teach them by his Spirit, to put them upon considering and to give them a good understanding. 3. We then number our days to good purpose when thereby our hearts are inclined and engaged to true wisdom, that is, to the practice of serious godliness. To be religious is to be wise; this is a thing to which it is necessary that we apply our hearts, and the matter requires and deserves a close application, to which frequent thoughts of the uncertainty of our continuance here, and the certainty of our removal hence, will very much contribute. II. For the turning away of God's anger from them, that though the decree had gone forth, and was past revocation, there was no remedy, but they must die in the wilderness: "Yet return, O Lord! be thou reconc…