The modern hymn, "His Mercy Is More" was co-written by Matt Papa & Matt Boswell, was inspired by a John Newton sermon.

Are not you amazed sometimes that you should have so much as a hope, that, poor and needy as you are, the Lord thinketh of you? But let not all you feel discourage you. For if our Physician is almighty, our disease cannot be desperate and if He casts none out that come to Him, why should you fear?

Our sins are many, but His mercies are more: our sins are great, but His righteousness is greater: we are weak, but He is power. Most of our complaints are owing to unbelief, and the remainder of a legal spirit. And these evils are not removed in a day.  -- John Newton

His Mercy Is More has the "singable feel" of a modern worship song that congregations can sing every Sunday, but retains the overall structure of a traditional hymn. 

“Hymns have an aesthetic density that isn’t present in all of the church’s songs,” continues Papa.  “They represent transcendence both as art for our culture and as a part of our sung worship of Jesus.  My own focus on the Psalms as laments and the beauty of their emotional honesty brought these songs to life.”

“When we sing a lyric like ‘Our sins they are many, His mercy is more’ that is a truth for all time, all places and for all generations and it is worth the effort for sing that truth.”   

At its core, and especially in the chorus, "His Mercy Is More" is a celebratory song although in the opening lines this isn't so obvious. The opening piano feels haunting and the questioning nature of the first verse acknowledges God's omniscience and into the second verse the conversation from the singer's perspective is concerned and questioning "what kind of big God would love a sinner?" But as each verse resolves, we are reminded that "our sins they are many" but God's mercy is more (Praise the Lord!).

That "Praise The Lord" is the real emotion that we should feel - that mercy "welcomes the weakest, the vilest, the poor" and allows us all to celebrate the fact that "His Mercy Is More." 

So as you sing this song, really shout out and sing the gospel because while our sins are many, His mercy is more!