On that day some Sadducees (who say there is no resurrection) came to Jesus and questioned Him, asking, “Teacher, Moses said, ‘If a man dies having no children, his brother as next of kin shall marry his wife, and raise up children for his brother.’
“Now there were seven brothers with us; and the first married and died, and having no children left his wife to his brother; so also the second, and the third, down to the seventh. Last of all, the woman died. In the resurrection, therefore, whose wife of the seven will she be? For they all had married her.”
But Jesus answered and said to them, “You are mistaken, not understanding the Scriptures nor the power of God. For in the resurrection they neither marry nor are given in marriage, but are like angels in heaven.
“But regarding the resurrection of the dead, have you not read what was spoken to you by God: ‘I am the God of Abraham, and the God of Isaac, and the God of Jacob’? He is not the God of the dead but of the living.”
When the crowds heard this, they were astonished at His teaching.
Aelred: Have you forgotten what the Scriptures say? “A friend loves at all times.” And remember too what Jerome says: “Friendship which can end was never truly friendship.”… In friendship, then, etermity blooms, and truth glows, and charity grows sweet.
Ivo: So what does this mean? Shall I say of friendship that which Jesus’ friend, John, says about love: “God is friendship”?
Aelred: Well, that would be unusual, and doesn’t have the clear authority of Scripture, but I do think that what is true of love, is also true of friendship; and so “those who abide in friendship, abide in God, and God abides in them.”
-Aelroed of Rievaulx (1110-1167), Spiritual Friendship 1.68-70