Matthew Poole and continuators on Acts 10:2

2 A devout man, and one that feared God with all his house, which gave much alms to the people, and prayed to God alway.

This Cornelius was a Proselite of the gate, or such as observed the seven precepts of Noah and lived without giving any offence to the Iews.

It was a very good sign that he feared God, in that he ingaged all his house to do the like, at least outwardly, which was as much as he could do; this was spoken by God in Abrahams commendation, Gen. 18.19.

He did not neglect the seasons of prayer, especially the time of offering the morning and evening Sacrifice; which by prayer they desired to partake the benefit of, by which Christ our Sacrifice, and his merits were figured unto them; Cornelius indeed prayed always, or at all times, taking time in a moral sense, for the seasons and opportunities for such a duty; (as we are commanded to give always thanks, Eph. 5.20) but he could not pray always, or at all times, taking time in a natural sense; for then he must have neglected all other duties; howsoever, his indeavour was to keep his heart always in a praying disposition.