It is written in the prophets [Isa. 54:13], 'And they will all be taught by God.' [So], every person who has heard the Father and learned [from Him] will come to me.

He preached to them about the kingdom of God and taught things about the Lord Jesus Christ, with no one preventing him.

But the person who is taught the word [of God] should provide his teacher with what he needs.

Now you people do not need anyone to write to you about loving [your] brothers, for you yourselves have been taught by God to love one another.

My dearly loved ones, I am not writing to you about a new commandment, but about an old one. [It is the one] you had learned about from the beginning. [Note: This is the commandment to love one another (3:1: II John 5) which Jesus had taught his disciples during His earthly ministry. See Mark 12:31]. This old commandment is the word [of God] which you heard [previously].