5 How is it that he began to pay at the last? Are not all, as we read, to receive together? For we read in another place of the Gospel, that He will say to those whom He shall set on the right hand, “Come, you blessed of My Father, receive the kingdom prepared for you from the beginning of the world.” If all then are to receive together, how do we understand in this place, that they received first who began to work at the eleventh hour, and they last who were hired at the first hour?
If I shall be able so to speak, as to reach your understanding, God be thanked. For to Him ought ye to render thanks, who distributes to you by me; for nought of my own do I distribute. If you ask me, for example, which of the two has received first, he who has received after one hour, or he who after twelve hours; every man would answer that he who has received after one hour, has received before him who received after twelve hours. So then though they all received at the same hour, yet because some received after one hour, others after twelve hours, they who received after so short a time are said to have received first.
The first righteous men, as Abel, and Noe, called as it were at the first hour, will receive together with us the blessedness of the resurrection. Other righteous men after them, Abraham, Isaac, Jacob, and all of their age, called as it were at the third hour, will receive together with us the blessedness of the resurrection. Other righteous men, as Moses, and Aaron, and whosoever with them were called as it were at the sixth hour, will receive together with us the blessedness of the resurrection.
After them the Holy Prophets, called as it were at the ninth hour, will receive together with us the same blessedness. In the end of the world all Christians, called as it were at the eleventh hour, will receive with the rest the blessedness of that resurrection. All will receive together; but consider those first men, after how long a time do they receive it? If then those first receive after a long time, we after a short time; though we all receive together, yet we seem to have received first, because our hire will not tarry long in coming.
Source: Sermons on Selected Lessons of the New Testament (New Advent)