God is a forgiving God and rich and plenteous in His mercy,
The condition attach to this is : “to all who call on Him”.
Fundamentally God’s mercy is about forgiveness. It’s human nature to think he may approach God on his own merit. It’s human nature to be proud.
Even your very best, your absolute best, is not enough to please God
But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away. ” Isaiah 64:6
“So then they that are in the flesh cannot please God”. Romans 8:8
As it is written, There is none righteous, no, not one:” Romans 3:10
And so, if we are to ever have a relationship with God our prime need, our first need is this – to be forgiven. God will help us in other areas of our lives – but first and foremost we need to see our need of forgiveness which comes from a merciful God.
Sin is definitely, a relationship breaker. How many times, if you can even count them, has sin caused you problems and difficulties in relationships. We know that is true. How much more so in our relationship with God.
“He hath not dealt with us after our sins; nor rewarded us according to our iniquities”. Psalm 103.10 However, God’s mercy means that he does not treat us as our sins deserve. We are deserving of destruction and punishment and condemnation. But God’s mercy means that we are not treated as our sins deserve. God’s mercy means we can be forgiven.
Refer also to: Ephesians 2:4-9