Ephesians 2:4 But God, who is rich in mercy, because of His great love with which He loved us
The one thing I find hard to explain to people is just how merciful God really is. People get caught up in self-pity or self-guilt and they cannot see how God can every forgive them because they think they are the only ones who know what they have done!
God knows exactly what we have done and still He carried on forward to the cross!
It takes a person who has gone through a whole lot of evil and been forgiven to explain just how awesome God is.
Love God. Love mercy.