St. Cyril of Jerusalem
4. If any man attempt to speak of God, let him first describe the bounds of the earth. Thou dwellest on the earth, and the limit of this earth which is thy dwelling thou knowest not: how then shalt thou be able to form a worthy thought of its Creator? Thou beholdest the stars, but their Maker thou beholdest not: count these which are visible, and then describe Him who is invisible, Who telleth the number of the stars, and calleth them all by their names. Violent rains lately came pouring down upon us, and nearly destroyed us: number the drops in this city alone: nay, I say not in the city, but number the drops on thine own house for one single hour, if thou canst: but thou canst not. Learn then thine own weakness; learn from this instance the mightiness of God: for He hath numbered the drops of rain, which have been poured down on all the earth, not only now but in all time. The sun is a work of God, which, great though it be, is but a spot in comparison with the whole heaven; first gaze steadfastly upon the sun, and then curiously scan the Lord of the sun. Seek not the things that are too deep for thee, neither search out the things that are above thy strength: what is commanded thee, think thereupon.
NPNF, VOL 7, LECTURE 6
CONCERNING THE UNITY OF GOD ON THE ARTICLE, I BELIEVE IN ONE GOD. ALSO CONCERNING HERESIES.