Those who do love Christ's Divine Mercy do so because we are all too aware of sin in our lives and in the lives of people we love.
Thinking you have a "Get Into Heaven Free" card-as my sister calls it, is very likely a bad idea.
It goes with that little rhymn:
Mr Smith was very good
He went to church each Sunday
But Mr Smith-he went to hell
for what he did on Monday.
Many of us have friends and family who we see are far from God and we are worried about them. it isn't easy to say-or face up to-but some of the people we care about might very well end up in hell. I am sure most of us would not want to see even our enemies end up with such a fate. The tradgetdy is beyond comprehension; that a person made in the image and likeness of God could so shun that image as to turn from Him forever and suffer the misery of eternal hatred.
I pray all the time for a friend who I fear for who died in bad circumstances. I pray for two people who I can't say I love, but I still don't want them to end up in hell; they abused their children.
I have a friend who seems not so much to be agnostic (and miserable) but actually afraid of God. She's had two abortions.
Another who has lapsed from her Catholic faith-after a horrible 'Catholic' upbringing and later an abortion.
The list goes on.
I don't want any of these people to have to face God's justice; I pray for His Mercy.
It's because sin is so real, Satan is there and hell is waiting that we turn to God's Mercy.
Frankly the people I know who don't believe in hell don't believe in mercy either.