I desire the flesh and blood of Christ

I have no delight in corruptible food, nor in the pleasures of this life. I desire the bread of God, the heavenly bread, the bread of life, which is the flesh of Jesus Christ, the Son of God, who became afterwards of the seed of David and Abraham; and I desire the drink of God, namely His blood, which is incorruptible love and eternal life.

Ignatius of Antioch
Epistle to the Romans
Chapter VII

According to the love of Jesus Christ our God

Ignatius, who is also called Theophorus, to the Church which has obtained mercy, through the majesty of the Most High Father, and Jesus Christ, His only-begotten Son; the Church which is beloved and enlightened by the will of Him that wills all things which are according to the love of Jesus Christ our God, which also presides in the place of the region of the Romans, worthy of God, worthy of honor, worthy of the highest happiness, worthy of praise, worthy of obtaining her every desire, worthy of being deemed holy,  and which presides over love, is named from Christ, and from the Father, which I also salute in the name of Jesus Christ, the Son of the Father: to those who are united, both according to the flesh and spirit, to every one of His commandments; who are filled inseparably with the grace of God, and are purified from every strange taint, I wish abundance of happiness unblameably, in Jesus Christ our God.

Ignatius of Antioch
Epistle to the Romans
Chapter I

God is the Savior Himself

Flee, therefore, those evil offshoots of Satan, which produce death-bearing fruit, whereof if any one tastes, he instantly dies. For these men are not the planting of the Father. For if they were, they would appear as branches of the cross, and their fruit would be incorruptible. By it He calls you through His passion, as being His members. The head, therefore, cannot be born by itself, without its members; God, who is the Savior Himself, having promised their union.

Ignatius of Antioch
Epistle to the Trallians
Chapter XI

Jesus really died and is God, the judge of the Earth.

He was crucified in reality, and not in appearance, not in imagination, not in deceit. He really died, and was buried, and rose from the dead, even as He prayed in a certain place, saying, “But do Thou, O Lord, raise me up again, and I shall recompense them.” And the Father, who always hears Him, answered and said, “Arise, O God, and judge the earth; for Thou shall receive all the heathen for Thine inheritance.”

Ignatius of Antioch
Epistle to the Trallians
Chapter X

God the Word was born of Mary

Mary then did truly conceive a body which had God inhabiting it. And God the Word was truly born of the Virgin, having clothed Himself with a body of like passions with our own. He who forms all men in the womb, was Himself really in the womb, and made for Himself a body of the seed of the Virgin, but without any intercourse of man.

Ignatius of Antioch
Epistle to the Trallians
Chapter X

Trinity and Holy Orders

They introduce God as a Being unknown; they suppose Christ to be unbegotten; and as to the Spirit, they do not admit that He exists. Some of them say that the Son is a mere man, and that the Father, Son, and Holy Spirit are but the same person, and that the creation is the work of God, not by Christ, but by some other strange power.

Be on your guard, therefore, against such persons. And this will be the case with you if you are not puffed up, and continue in intimate union with Jesus Christ our God, and the bishop, and the enactments of the apostles. He that is within the altar is pure, but he that is without is not pure; that is, he who does anything apart from the bishop, and presbytery, and deacons, such a man is not pure in his conscience.

Ignatius of Antioch
Epistle to the Trallians
Chapter VI – VII