Hebrews 12:15
“Bear ye one another's burdens,” says he, “and so fulfill the law of Christ.” So then, both reproving and bearing with one another, shall we be able to fulfill edification. And thus will you make the labor light for us, in all things taking a part with us, and stretching out a hand, and becoming sharers and partakers, both in one another's salvation, and each one in his own. Let us then endure patiently, both bearing “one another's burdens,” and reproving: that we may attain to the good things promised in Christ Jesus our Lord, with whom to the Father together with the Holy Ghost, be glory, might, honor, now and for ever and world without end. Amen.
Source: Homilies on the Epistle to the Hebrews (New Advent)