John Calvin on 1 John 2:11

11. But he that hateth his brother. He again reminds us, that whatever specious appearance of excellency thou shewest, there is yet nothing but what is sinful if love be absent. This passage may be compared with the thirteenth chapter of the First Epistle to the Corinthians, and no long explanation is needed. But this doctrine is not understood by the world, because the greater part are dazzled by all sorts of masks or disguises. Thus, fictitious sanctity dazzles the eyes of almost all men, while love is neglected, or, at least, driven to the farthest corner.

1 John 2:12-14

12. I write unto you, little children, because your sins are forgiven you for his name’s sake.

12. Scribo vobis, filioli, quoniam remittuntur vobis peccata vestra propter homer ejus.

13. I write unto you, fathers, because ye have known him that is from the beginning. I write unto you, young men, because ye have overcome the wicked one. I write unto you, little children, because ye have known the Father.

13. Scribo vobis, patres, quoniam novistis eum qui est ab initio. Scribo vobis, adolescentes, quoniam vicistis malum illum. Scribo vobis, pueri, quoniam novistis Patrem.

14. I have written unto you, fathers, because ye have known him that is from the beginning. I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one.

14. Scripsi vobis, patres, quoniam novistis eum qui est ab initio. Scripsi vobis, adolescentes, quia fortes estis, et verbum Dei manet in vobis, et vicistis malum illum.