The disciples have been spending ample time with Jesus. The Lord has worked miracles in, through, and for them on numerous occasions, yet they still had trouble believing in Jesus. In Matthew 8:27, after Jesus calmed the sea, the disciples asked, "What sort of man is this, that even winds and sea obey him?" They noticed something amazing about Jesus, but they still didn't fully believe. Well after this experience they got their answer. Now they knew for sure that Jesus is the Son of God.
You may have seen God work before in your life, but He longs to take you to a deeper level of faith. Faith is believing in God based on what you have already seen Him do. The greater He acts in your life, the greater your faith will be. You may know God, but He wants you to know without a doubt that He is Lord of all and that you can trust Him! Trust that He has a plan. Why? Because Jesus truly is the son of God and He cares for you.