The LORD knows the days of the upright: and their inheritance shall be forever.
Read Chapter 37
Augustine of Hippo
AD 430
7. "And their inheritance shall be for ever" (ver. 18). This we hold by faith. Doth the Lord too know it by faith? The Lord knoweth those things with as clear a manifestation, as we cannot speak of even when we shall be made equal to the Angels. For the things that shall be manifest to us, shall not be equally manifest to us as they are now to Him, who is incapable of change. Yet even of us ourselves what is said? "Beloved, now are we the sons of God: and it doth not yet appear what we shall be: but we know that, when He shall appear, we shall be like Him, for we shall see Him as He is." There is therefore surely some blissful vision reserved for us; and if it can be now in some measure conceived, "darkly and through a glass," yet cannot we in any way express in language the ravishing beauty of that bliss, which God reserves for them that fear Him, which He consummates in those that hope in Him, It is for that destination that our hearts are being disciplined in all the troubles and tr...
6. Therefore "the Lord does strengthen the righteous." In what way does He strengthen them? "The Lord knoweth the ways of the spotless ones" (ver. 18). When they suffer ills, they are believed to be walking ill ways by those who are ignorant, by those who have not knowledge to discern "the ways of the spotless ones." He who "knoweth those ways," knoweth by what way to lead His own, "them that are gentle," in the right way. Whence in another Psalm he said, "The meek shall He guide in judgment; them that are gentle will He teach His way." How, think you, was that beggar, who lay covered with sores before the rich man's door, spurned by the passers by! How did they, probably, close their nostrils and spit at him! The Lord, however, knew how to reserve Paradise for him. How did they, on the other hand, desire for themselves the life of him who was "clad in purple and fine linen, and fared sumptuously every day!" But the Lord, who foresaw that man's "day coming," knew the torments, the torm...
Days, or "ways "according to some copies of Septuagint. (St. Augustine) God approves the conduct of the just. He takes notice of the time of their sufferings, and comforts them during life, (Calmet) yea, for ever.