1 Jn. 3:24 Whoever keeps His commandments abides in God, and God in him. And by this we know that he abides in us, by the Spirit whom He has given us.
St. Maximus the Confessor ca. 580-662
God the Word of God the Father is mystically present in each of His own commandments. God the Father is by nature completely inseparable in the whole of His Word. Therefore the one who receives the divine commandment and acclomplishes it receives in it the Word of God. The one who has received the Word through the commandments has received along with Him the Father Who is in Him by nature. For the Scripture says, “Amen I say to you, the one who receives the one who sent me.” Therefore the one who has accepted a commandment and performed it has received in mystical possession the Holy Trinity. (Chapters on Knowledge, Second Century 71)