"My Heart Is Steadfast (Psalm 103)" is a song by Ellie Holcomb inspired by and based on Psalm 103 from the Bible. The lyrics of the song reflect the psalmist's unwavering devotion and praise for God. The song begins with a declaration of a steadfast heart, symbolizing a firm and unchanging faith in God. The psalmist expresses their desire to sing praises to God among the nations, proclaiming His greatness and giving thanks to Him among all the peoples. The psalmist acknowledges that God's loving kindness is greater than anything in the heavens and that His truth reaches beyond the skies. The chorus repeats the theme of exalting God above the heavens and His glory being over all the Earth. This desire for God's glory to be displayed leads the psalmist to invoke God's deliverance for those who love Him. The psalmist asks God to save with His right hand and to answer their prayers. The bridge of the song repeats the earlier verses with a melodic variation, emphasizing the psalmist's confident and persistent devotion to God. The repetition of the phrase "Whoa, oh, whoa" serves as a musical interlude and emphasizes the psalmist's awe and wonder towards God. Overall, "My Heart Is Steadfast (Psalm 103)" is a heartfelt expression of praise and devotion to God, drawing inspiration from the ancient words of Psalm 103. The song encourages listeners to remain steadfast in their faith, to praise God unceasingly, and to seek His deliverance and answer to their prayers.