Hebrews 13:1
1Let brotherly love continue.
Wesley: brotherly love is explained in the following verses—hospitality, care for prisoners, honor of marriage, contentment.
Listen here for a pastoral command for the whole household: love among brethren is to continue, not cool. The exhortation assumes hearers who must keep loving; do not invent a church that loves by decree alone while ignoring the concrete duties that follow.
Calvin: probably aimed at secret hatred threatening to rend churches, yet needful generally—nothing flows away so easily as love. Brotherly love is the household of faith’s mutual bond under adoption; we cannot be Christians without being brethren.
Continue implies love already shown. Adoption binds the family; haughty self-regard lets love drain away.