Athanasius De inc 19.3

3. For He made even the creation break silence: in that even at His death, marvellous to relate, or rather at His actual trophy over death— the Cross I mean— all creation was confessing that He that was made manifest and suffered in the body was not man merely, but the Son of God and Saviour of all. For the sun hid His face, and the earth quaked and the mountains were rent: all men were awed. Now these things showed that Christ on the Cross was God, while all creation was His slave, and was witnessing by its fear to its Master’s presence. Thus, then, God the Word showed Himself to men by His works. But our next step must be to recount and speak of the end of His bodily life and course, and of the nature of the death of His body; especially as this is the sum of our faith, and all men without exception are full of it: so that you may know that no whit the less from this also Christ is known to be God and the Son of God.