Affirmation builds faith.

To build yourself up in faith means that you have to do something to increase your faith. See if this helps:

I know that Jesus died and rose from the dead — for me.

I know that I have asked Jesus into my heart to be my Lord and Savior.

I know my sins are forgiven and I am clean.

I know that I am filled with the Holy Spirit.

I know I belong to God.

I know He loves me passionately.

I know I am rooted and grounded in His love.

I know God has a destiny for me that I will love.

I know that I have peace because I have all the gifts of the Holy Spirit.

I know all of heaven is open to me.

I know I’ve been given all wisdom.

I know I have all authority to speak in Jesus’s name.

I know the devil must leave me when I rebuke him.

I know that I can pray for the sick and they will get better.

I know I can pray for miracles to happen, because God loves me.

I know I can ask for more from God and He will give it, because He wants to bless me.

I know that God wants to bless me.

I know that He is a good Father.

I know that nothing is impossible with God.

I know He can do anything…anything.