Abraham knew that God was able. Do you know that God is able? Are you persuaded, fully persuaded that God is able also to do what he has promised?
God has promised eternal life, do you believe it? God has promised power and grace for us to live like sons of God, sinless, in holiness all the days of our life, do you believe this? God has promised an end of this world and eternal punishment for sinners, are you fully persuaded of these things? Or are you 'seated on the fence'?
Get fully persuaded. See God's standards, requirements and promises, and get CONVINCED now. This is very righteousness!