A man can take (A.V. receive) nothing, except it be given him from heaven. John iii 27

and in the same:

He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing. John xv 5.

He that abideth in me, and I in him, the same bringeth forth much fruit, means, that all good is from the Lord. Fruit denotes good, and, Without me ye can do nothing, means, that no one can do good from himself. Those who believe on the Lord and do good from Him are called

Sons (A.V. children) of light. John xii 36; Luke xvi 8

Sons of the bride-chamber. Mark ii 19

Sons of the resurrection. Luke xx 36

Sons of God. Luke xx 36; John i 12

Born of God. John i 13

and it is said that

They shall see God. Matt v 8;

The Lord will make His abode with them John xiv 23

They have the faith of God. Mark xi 22

Their deeds are wrought from God. John iii 21.

These things are summed up in the words:

As many as received Him [Jesus] to them gave He power to become the sons of God, even to them that believe on His name:

Who were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God. John i 12, 13.

To believe on the name of the Son of God, is to believe the Word and live according to it; the will of the flesh is the proprium of man's will, which in itself is evil; and the will of man is the proprium of his understanding, which in itself is falsity from evil. They are "born of these" who will and act, think and speak from their proprium; while they are "born of God" who do these things from the Lord. In short, that is not good which is from man, but that is good which is from the Lord.