4. Therefore have the Jews departed from God, in not receiving His Word, but imagining that they could know the Father [apart] by Himself, without the Word, that is, without the Son; they being ignorant of that God who spake in human shape to Abraham, and again to Moses, saying, "I have surely seen the affliction of my people in Egypt, and I have come down to deliver them." For the Son, who is the Word of God, arranged these things beforehand from the beginning, the Father being in no want of angels, in order that He might call the creation into being, and form man, for whom also the creation was made; nor, again, standing in need of any instrumentality for the framing of created things, or for the ordering of those things which had reference to man; while, [at the same time,] He has a vast and unspeakable number of servants. For His offspring and His similitude do minister to Him in every respect; that is, the Son and the Holy Spirit, the Word and Wisdom; whom all the angels serve, and to whom they are subject. Vain, therefore, are those who, because of that declaration, "No man knoweth the Father, but the Son," do introduce another unknown Father.