Augustine of Hippo
Matthew 19:27-28 conveys a powerful commitment. This vow originates from Him of whom it is stated, "He that giveth a vow to him that bringeth a vow." Without this divine origin, one would belong to the group whose strength fails them. Only those who have received what they dedicate from Him can rightly offer anything to God. Furthermore, the phrase “And bless the years of the righteous” signifies that they may live eternally with Him of whom it is proclaimed, “Thy years shall not end” (Psalm 101:28). In that place, seasons stand still, while here they fade away and vanish. Before they fade, they do not yet exist; when they vanish, they are gone forever. Thus, to “Give the vow to the vow-bearer, and bless the years of the righteous” reflects our action and our acceptance. However, the latter can only be received when the former is fulfilled with His assistance, for it is not through human strength that one is empowered.