Our starting-point must be the fact that God cannot be named... no mind has yet contained or language embraced God's substance in its fullness. No, we use facts connected with Him to outline qualities that correspond with Him, collecting a faint and feeble mental image from various quarters. Our noblest theologian is not one who has discovered the whole - our earthly shackles do not permit us the whole - but one whose mental image is by comparison fuller, who has gathered in his mind a richer picture, outline, or whatever we call it, of the truth.
Gregory of NazianzusTo all earth's creatures God has given the broad earth, the springs, the rivers and the forests, giving the air to the birds, and the waters to those who live in water, giving abundantly to all the basic needs of life, not as a private possession, not restricted by law, not divided by boundaries, but as common to all, amply and in rich measure.
Gregory of NazianzusWho should listen to discussions of theology? Those for whom it is a serious undertaking, not just another subject like any other for entertaining small-talk, after the races, the theater, songs, food, and sex: for there are people who count chatter on theology and clever deployment of arguments as one of their amusements.
Gregory of NazianzusWhat is the right time [to discuss theology]? Whenever we are free from the mire and noise without, and our commanding faculty is not confused by illusory, wandering images, leading us, as it were, to mix fine script with ugly scrawling, or sweet-smelling scent with slime. We need actually 'to be still' (Ps. 46:10) in order to know God, and when we receive the opportunity, 'to judge uprightly' (Ps. 75:2) in theology.
Gregory of NazianzusWhen one has looked upon Jesus, though he be of little stature like Zacchaeus of old (cf. Lk. 19:3), and climb up on the top of the sycamore tree by mortifying his members which are upon the earth (cf. Col. 3:5), and having risen above the body of humiliation, then he shall receive the Word, and it shall be said to him, This day has salvation come to this house (cf. Lk. 19:9). Then let him lay hold on the salvation, and bring forth fruit more perfectly, scattering and pouring forth rightly that which as a publican he wrongly gathered.
Gregory of NazianzusNo one has yet discovered or ever shall discover what God is in His nature and essence... we shall, in time to come, 'know as we are known' (I Cor 13:12). But for the present what reaches us is a scant emanation, as it were a small beam from a great light - which means that any one who 'knew' God or whose 'knowledge' of Him has been attested to in the Bible, has a manifestly more brilliant knowledge than others not equally illuminated. This superiority was reckoned knowledge in the full sense, not because it really was so, but by the contrast of relative strengths.
Gregory of Nazianzus