My heart is confident in You, O God; no wonder I can sing Your praises with all my heart! (Psalms 108:1 NLT)
I like this verse in the New Living Translation. My heart is confident in You. This means to me that I have faith in God. I trust Him no matter what circumstances I find myself in. Other translations say steadfast and fixed. When you have confidence in someone you want to stay the course. You are determined that you want to stay with that person because of the confidence and love that you have for them. That is how I feel about my Savior and friend.