
Gregory the Great
Catena Aurea · Matthäusevangelium 5
Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee; Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.
(Hom. 1. in Ezech. viii. 9.) Lo He is not willing to accept sacrifice at the hands of those who are at variance. Hence then consider how great an evil is strife, which throws away what should be the means of remission of sin.