John the Apostle
John 17:13ESV·traditional attribution

But now I am coming to you, and these things I speak in the world, that they may have my joy fulfilled in themselves.

John Calvin Reformed @genevareformer

13. And these things I speak in the world. Here Christ shows that the reason why he was so earnest in praying for his disciples was, not that he was anxious about their future condition, but rather to provide a remedy for their anxiety.

Matthew Henry Presbyterian @wholebiblehenry

After the general pleas with which Christ recommended his disciples to his Father's care follow the particular petitions he puts up for them; and, 1. They all relate to spiritual blessings in heavenly things. He does not pray that they might be rich and great in the world, that they might raise estates and get preferments, but that they might be kept from sin, and...

Commenting on John 17:11-16

John Gill Reformed Baptist @doctorgill

And now come I to thee,.... As in Joh 17:11, which he repeats as a very great happiness to himself, and with much pleasure and joy, but not without concern for those he was parting from: and these things I speak in the world; which he had expressed in this prayer concerning the nature of eternal life, and his power to give it to all...