To overcome lust and temptations of course. Much of the Rosary is Scripture too. The important points are to pray and use scripture to overcome temptation.
To just memorize scripture takes it out of the context of the fabric of my soul. It serves no purpose. I don't need to bust people over the head with word, word word, and then XXX:3-12. I mean if you want it OK.
In the beginning was the Word: the Word was with God and the Word was God.
I mean how fantastically mind blowing and awesome is that? Just breathe it into you. I guess I just don't get why people use Jesus as a weapon, even unintentionally.