Glossa Ordinaria
Catena Aurea · Markusevangelium 10
Then Peter began to say unto him, Lo, we have left all, and have followed thee. And Jesus answered and said, Verily I say unto you, There is no man that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my sake, and the Gospel’s, But he shall receive an hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life. But many that are first shall be last; and the last first.
(non occ.) Because the youth, on hearing the advice of our Saviour concerning the casting away of his goods, had gone away sorrowful, the disciples of Christ, who had already fulfilled the foregoing precept, began to question Him concerning their reward, thinking that they had done a great thing, since the young man, who had fulfilled the commandments of the law, had not been able to hear it without sadness. Wherefore Peter questions the Lord for himself and the others, in these words, Then Peter began to say unto him, Lo, we have left all, and have followed thee.