I seem indeed to hear that voice, from Him Who gathers together those who are broken, and welcomes the oppressed: I have given you up, and I will help you. In a little wrath I struck you, but with everlasting mercy I will glorify you (cf. Isa. 54:8). The measure of His kindness exceeds the measure of His discipline.
Gregory of NazianzusMore Gregory of Nazianzus quotes
If anyone does not believe that Holy Mary is the Mother of God, he is severed from the Godhead. If anyone should assert that He passed through the Virgin as through a channel, and was not at once divinely and humanly formed in her (divinely, because without the intervention of a man; humanly, because in accordance with the laws of gestation), he is in like manner godless.
Gregory of Nazianzus