John Chrysostom
But in order to "walk worthily of God," something more must be "known" (έπιγνώναι). By this he indicates life and deeds, as he always does, always joining the manner of life to faith.
"Pleasing Him in all things." In what way is one "pleasing Him in all things"? "Pleasing Him in all things." As He revealed Himself to you, he says, and as you received such knowledge, so show a life worthy of the faith.
Our faith requires a special life, far higher than the ancient one. For the one who knows God and has been counted worthy to be God's servant, even His son, consider what virtue is required of him.
Read more (251 words)
"That you may walk," he says, "worthily of God." This is the path of the best life, when one has known God's love for mankind. The one who can behold the delivered-up Son knows it, and he will have greater zeal.
Yet we pray not only that you may know God's will, but that you may show this by deeds themselves. For the one who knows and does not act will be punished.
"That you may walk," he says, that is, always, not once, but at every time. As walking is necessary for us, so also is right living. He rightly calls such a life a walk, showing that this life is set before us, and that worldly life is not such.
There is great praise in his words: "that you may walk worthily of God," and "in every good work." That is, you must always grow and never stop.
And metaphorically: "bearing fruit in every good work and growing in the knowledge of God." That is, that you may be clothed with the power of God as much as is possible for man.
"In the knowledge of God." At the same time he touches on the conditions of knowledge. But to know God as one ought means not to be in error. You must, he says, grow in the knowledge of God.
If the one who does not know the Son also does not know the Father, then knowledge is rightly required. Without it there is no benefit from life.