Currently on repeat in my head: this gorgeous piece by Francisco Guerrero (sung by The Advent Choir a few years back with yours truly on S1)!
Hoc est præceptum meum -- Francisco Guerrero (1528-1599) / The Advent Choir / Jeremy Bruns, conductor /
Hoc est præceptum meum ut diligatis invicem sicut dilexi vos. Maiorem charitatem nemo habet ut animam suam ponat quis pro amicis suis. Vos amici mei estis si feceritis quæ præcipio vobis. Vos autem dixi amicos quia omnia quæcumque audivi a Patre meo nota feci vobis.
This is my commandment, that ye love one another, as I have loved you. Greater love hath no man than this, that a man lay down his life for his friends. Ye are my friends, if ye do whatsoever I command you; I have made known to you all that my Father has told me, and so I have called you my friends.
(John 15:12-14,15b)