Okay, so Hebrews 5 is a part of the Bible that talks about how Jesus became a high priest. A high priest is like a really important leader in a church or religion.
Before Jesus became a high priest, he learned all about God and how to be a good leader. This is kind of like going to school, where you learn different things and get better as you practice.
The Bible also talks about how Jesus prayed a lot and even cried sometimes. This shows that Jesus really cared about people and their problems. It's like when you feel sad and tell an adult about it, Jesus was like that adult who listened and helped.
So when Jesus became a high priest, he was really good at it because he had learned so much and cared so much. The Bible tells us that because of Jesus, we can talk to God and ask for help whenever we need it. It's kind of like having a really good friend who is always there for you and can help you no matter what.