John I will come to you, I will not leave you comfortless. Jesus is talking about the Holy Spirit here that God will send, as the presence of the Living Jesus Christ to be with us, to comfort us, and to be our Advocate.
Matthew (NIV) - "So don’t be afraid; you are worth more than many sparrows." You are worth more than all the gold in the world! You are worth the life of God himself! So, don't leave other humans establish your worth, agree with God and be free!