Hebrews 10:22 let us draw near to God with a sincere heart and with the full assurance that faith brings, having our hearts sprinkled to cleanse us from a guilty conscience and having our bodies washed with pure water.
When Christ called us to faith, it was not to have a half-hearted approach to something which may happen if we remember to ask for it!
God wants us to have a full faith in Him, from our heart and not just by word of mouth. God wants us to depend on our faith so we can demonstrate it fully to others.
I had a strange dream last night which reminded me of this – our faith has to be full and God will honour it!