The spotless purity of John’s whole life makes him strong before the Cross. The other apostles fly from Golgotha: he, with the Mother of Christ, remains.
Don’t forget that purity strengthens and invigorates the character.
How I would like — you told me — the young apostle, John, would take me into his confidence and give me advice: and encourage me to acquire purity of heart.
If you really would like it, tell him so: and you will feel encouraged, and you will receive advice.
This excerpt is from Josemaría Escrivá’s book The Way.