I am sure you have been very, very hungry before. It had probably been a long time since you had eaten anything. Your stomach was probably growling. You felt like there was a big empty space inside of you. If you live in the United States, this probably only happens when you have not eaten in several hours. If you live in many countries of the world, you may not have eaten in several days.
Jesus can understand how hungry you are. One time he went for 40 days without eating (Matthew 4:1-4). Can you imagine how hungry he must have been? Satan knew how hungry he was. And, Satan was going to use the situation as a way to get Jesus to do wrong. Satan thought he could get Jesus to turn rocks into bread. He wanted Jesus to obey him rather than God the Father.
But, Jesus would not do what Satan wanted. Jesus instead quoted Scripture to Satan. Jesus had studied the Scriptures and obeyed them. He was ready to answer Satan, even when it was very hard not to do what Satan wanted.
When you are very hungry, you may be tempted to do something you should not. You may be tempted to get into food that your parents have told you to leave alone. Or, if you have gone for a very long time without eating, you may be tempted to steal food. This is wrong. That is what Satan wants you to do.
Resist Satan. Do not do wrong. Remember what Jesus did and follow his example.