It’s my understanding that the muslim god (Allah) is not merciful.
Many people think that the God of the Old Testament was not merciful, yet his wrath was turned by through the pleading of prophets.
Most Christians look upon Christ as being more merciful that God the Father, since Christ died for our sins — total unconditional love for the Father and for us.
But I tend to think that the real joy comes through God the Holy Spirit.
ISLAM UNVEILED is an excellent book.
ANGER is obligatory at the least insult or offense—otherwise one is considered a wimp, a nothing.
Retaliation and vengeance, the same thing.