“And Jesus answering saith unto them, Have faith in God.”
Mark 11:22

Jesus told his disciples to have faith in God and proceeded them to tell them how. Isn’t it just like Jesus- he tells you what to do and how to do it.
The Bible tells us:
“So then faith cometh by hearing, and hearing by the word of God.” Romans 10:17
When you heard the gospel- as the word of faith was preached to you (Romans 10:8), faith was ministered to you and with that you believed that God raised Jesus from the dead and declared that he is Lord of your life.(Romans 10:9-10)
So as a Christian, you have the measure of faith (necessary for salvation- which is a big deal!)
“…God hath dealt to every man the measure of faith.” (Romans 12:3)
You have enough faith in God to believe he sent his son to die for you, but that’s not where you stop, God expects you to live a life of faith:
“(For we walk by faith, not by sight:)” 2 Corinthians 5:7

Bible Reading Plan: Ezekiel 22 and Hebrews 12