The readings at Mass this First Sunday of Lent illustrate constrasts between good and evil.
The first reading is of Adam and Eve in the garden and the fall that brought us sin (and the fashion industry). The Gospel shows us Jesus in the desert being tempted by the devil.
From Matthew Chapter 4:
At that time Jesus was led by the Spirit into the desert to be tempted by the devil. He fasted for forty days and forty nights, and afterwards he was hungry.
The tempter approached and said to him, “If you are the Son of God, command that these stones become loaves of bread.”
He said in reply, “It is written: One does not live on bread alone, but on every word that comes forth from the mouth of God.”
Then the devil took him to the holy city, and made him stand on the parapet of the temple, and said to him, “If you are the Son of God, throw yourself down. For it is written: He will command his angels concerning you and with their hands they will support you, lest you dash your foot against a stone.”
Jesus answered him, “Again it is written, You shall not put the Lord, your God, to the test.”
Then the devil took him up to a very high mountain, and showed him all the kingdoms of the world in their magnificence, and he said to him, "All these I shall give to you, if you will prostrate yourself and worship me.”
At this, Jesus said to him, “Get away, Satan! It is written: The Lord, your God, shall you worship and him alone shall you serve.”
Then the devil left him and, behold, angels came and ministered to him.
The image above is of the 1854 painting "Temptation of Christ" by Ary Scheffer.