What is causing us to miss a blessing?

Collectively they all said, "isn't this the carpenter and Mary's son". They had just listened as he taught in the synagogue, and were astonished at his wisdom and even referenced his mighty works. With that before them they were still offended with him, which caused Jesus to say "a prophet is not without honor, save in his own country and in his own house." The final thought in this chapter says, he did not many mighty works there because of their unbelief. Matthew 13:53-58
It is a blessed thing to grow up in a Christian home with Christian parents and siblings. It is also wonderful to attend a sound Bible preaching Church. And yet, this familiarity with God and the things of God, causes us to miss blessings that are regularly being received by the new babe in Christ. You know him! He is the one who has been forgiven much, and takes nothing for granted. Some folks could live next door to Jesus and never receive a blessing because of their unbelief!