For you have the poor with you always, and whenever you will you may do them good: but me you have not always.
Read Chapter 14
Bede
AD 735
[Jesus] was going to remain bodily with the church for but a brief while, whereas the poor, for whom alms could be provided, were always to be found in it.
Christ here answers the apostles, by informing them that he should not always be with them, but would shortly leave them, as to his corporal presence, though he spiritually will remain with them, and their successors, to the end of time. (Matthew xxviii.)
Behold I am He will not always be with them, so as to want their services. (Ven. Bede)