In Matthew 4 the account of when Jesus was tested in the wilderness is given. This took place right after Jesus was baptized in the river Jordan by John the Baptist, and the Holy Spirit descended on Him. And it happened right before Jesus' ministry began. Jesus went into the desert (wilderness) for this purpose. He fasted 40 days and 40 nights and then the devil came to tempt Him. This was all a test for Jesus, and in the end He withstood and stayed faithful to the Father. The Bible teaches us that in the beginning there was Adam and Eve. They were perfect, sinless, and living in Paradise on earth. But, the devil came in and tempted Eve. She gave in and in turn tempted Adam to do the same. They both fell and that is when sin first came to us humans and entered the world. Ever since then we all struggle with it ("for all have sinned and fallen short of the glory of God," Romans 3:23). But, God always had a plan for our redemption. The Bible teaches that God gave us Jesus to be our redemption. Jesus became the "new Adam." It was like going through the same thing again, only this time the "new Adam" wasn't going to fall for it. When the devil came in and tempted Him, Jesus didn't fall for it. He remained faithful to God. He was always faithful, and ultimately fulfilled His mission to sacrifice His life for our sake. If Jesus wasn't perfect then He wouldn't be able to be our sacrifice, our redemption that makes it possible for us to receive complete forgiveness and to be put into a right place with God - in other words, "saved."

This is the account in Matthew 4:

Then Jesus was led by the Spirit into the wilderness to be tempted there by the devil. 2 For forty days and forty nights he fasted and became very hungry.

3 During that time the devil came and said to Him, “If you are the Son of God, tell these stones to become loaves of bread.”

4 But Jesus told him, “No! The Scriptures say,

‘People do not live by bread alone,
but by every word that comes from the mouth of God.’”

5 Then the devil took Him to the holy city, Jerusalem, to the highest point of the Temple, 6 and said, “If you are the Son of God, jump off! For the Scriptures say,

‘He will order his angels to protect you.
And they will hold you up with their hands
so you won’t even hurt your foot on a stone.’”

7 Jesus responded, “The Scriptures also say, ‘You must not test the Lord your God.’”

8 Next the devil took Him to the peak of a very high mountain and showed him all the kingdoms of the world and their glory. 9 “I will give it all to you,” he said, “if you will kneel down and worship me.”

10 “Get out of here, Satan,” Jesus told him. “For the Scriptures say,

‘You must worship the Lord your God
and serve only Him.’”

11 Then the devil went away, and angels came and took care of Jesus.