Pseudo-Jerome — as excerpted in the Catena Aurea on Mark 1:4-8

“Now by John as by the bride-groom’s friend, the bride is brought to Christ, as by a servant Rebecca was brought to Isaac; wherefore there follows, And there went out to him all, (Gen. 24:61) &c. For confession and beauty are in his presence, (Ps. 95:6. Vulg.) that is, the presence of the bridegroom. And the bride leaping down from her camel signifies the Church, who humbles herself on seeing her husband Isaac, that is, Christ. But the interpretation of Jordan, where sins are washed away, is ‘an alien descent.’ For we heretofore aliens to God by pride, are by the sign (symbolum) of Baptism made lowly, and thus exalted on highd.”