The Lord is with me, like a mighty champion.
Lord of hosts, who test the just,
who probe mind and heart.
It's good to have somebody very close who is strong. Then you feel more self-confident and are ready to do many things. If God is the one to whom you have entrusted your life, it's great. But to entrust yourself means to focus your mind and heart on him. It means to think about him and to love him from whole heart. It's like a prayer: I love you, O Lord, my strength, O Lord, my rock, my fortress, my deliverer (Ps 18:2). It's a strong conviction that you are a son of God and the Father is in you and you are in the Father (Jn 10:40).