In order to be Kingdom person, God is looking for three core traits. 

1. Love - Are you capable of loving other people? 

2. Do you have faith in God and trust in His Word? Even more, do you have the faith to where God can do something in your life? 

3. Do you have the faith to obey what God requires or asks of you? 

If you feel unworthy, join the club. You are well in the company of people like Moses and Peter. God establishes our faith from within, and then calls us to spread that blessing and act on it outwardly. The interesting thing is; NONE of us DESERVE God's blessing, healing, intervention, exaltation, etc. We get those things only because of God's Grace and Mercy.