“For things which are worthy of God will prove the existence of God. We maintain that God must first be known from nature, and afterwards authenticated by instruction: from nature by His works; by instruction, through His revealed announcements.”

—  Tertullian

Variant translation: We conclude that God is known first through Nature, and then again, more particularly, by doctrine; by Nature in His works, and by doctrine in His revealed word.
Book I, Chapter XVIII.—Notwithstanding Their Conceits, the God of the Marcionites Fails in the Vouchers Both of Created Evidence and of Adequate Revelation.
This was quoted by Galileo in his defense of natural sciences.
Galileo Galilei: Letter to the Grand Duchess Christina of Tuscany, 1615 https://people.bu.edu/dklepper/RN242/duchess.html
Against Marcion https://www.newadvent.org/fathers/0312.htm
Original: (la) Digna enim deo probabunt deum. Nos definimus deum primo natura cognoscendum, deinde doctrina recognoscendum, natura ex operibus, doctrina ex praedicationibus.

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Tertullian photo
Tertullian 41
Christian theologian 155–220

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