We know that the word renaissance is used to note a rebirth or revival in literature, art, etc. This was true in the 14th and 15th century. There was an interest in antiquity. One of the involving factors was the religious perspective that wanted to be taken from the knowledge they gathered. Nevertheless, other things emerged like individualism.
Signing works of art was not common before, but with this new uprising more and more people began to do it. There was also a rise of portraiture. It was erroneously thought that a man could become immortal through fame. Therefore, it began to be sought increasingly.
Not only did individualism emerge, but also worldly outlook. People began to choose active virtues over the contemplative ones. This meant that the world was now sought more than God. Inevitably, this made a switch on the mind of mankind, and gave him the erroneous idea of not needing God. The same thought that Adam and Eve believed when they were deceived by the snake (Genesis 3). This gave birth to humanism. Man would now think that he can achieve great things without the grace of God, and therefore have infinite possibilities.
Pico della Mirandola from the 15th century, a humanist, wrote the “Oration on the Dignity of Man”. Here he imagines God saying the following:
“The nature of all other creatures is defined and restricted within laws which We have laid down; you, by contrast, impeded with no such restrictions, may, by your own free will, to whose custody We have assigned you, trace for yourself the lineaments of your own nature… We have made you a creature neither of heaven nor of earth, neither mortal nor immortal, in order that you may, as the free and proud shaper of your own being, fashion yourself in the form you prefer.”
So God created man in his own image, in the image of God created he him; male and female created he them.
To be the image of God means to be as God or like God. It means having the DNA of God, just as a child has the DNA of his father. The DNA of God was breathed into Adam through his nostrils when he was created.
And the Lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
Adam became a living soul, therefore, when he ate from the tree of knowledge of good and evil he died. This means that he lost the DNA of God, and received the DNA of sin or iniquity (God, Man, and the Serpent). The good news is that Jesus came to restore what man had lost; this is the DNA of the Father. We receive His DNA by drinking and eating of Him, and fusing our spirit with His.
Whose eateth my flesh and drinketh my blood, hath eternal life; and I will raise him up at the last day.
But he that is joined unto the Lord is one spirit.
This means that we were made to represent the Father. In contrast, what Mirandola is saying, is that man can do whatever he pleases, for he is his own king (Breaking the Structures of Reason).
As we can see, this renaissance helped shape the humanist thought of today. Even if before they still noted the Bible and Catholic religion, the end was the same. Exalt man more than God.