Why do saints always run the Word back and forth to each other when they get mad? Is that a sin trying to get God to bless them and curse the other person?
Christians use the Word of God for a variety of reasons. Some are good and some are bad. It depends on their level of spiritual maturity before God. By your question, you appear to be referring to one of two possible things.
Some individuals quote scripture at each other in an attempt to win silly arguments. If that is what you are describing, then, yes, they are sinning. The goal should never be to prove that “I am right.” God gave us the Word of God for the following purposes,
All Scripture is inspired by God and profitable for teaching, for reproof, for correction, for training in righteousness; so that the man of God may be adequate, equipped for every good work. (NASB) 2 Timothy 3:16-17
Notice that scripture is given to change us. Immature Christians abuse scripture to prove points that are not important. Some use scripture in an attempt to prove unimportant points or to show that they are smart. Baby Christians behave like this, not mature Christians. A baby Christian is not necessarily a new Christian. Baby Christians can even be men and women who have had their sins forgiven, but have never grown beyond the ABCs of the Christian faith. They do not know their Bible very well. Some like to argue about the meaning of the Bible. They know enough scripture to enable themselves to look knowledgeable about the Bible, but they really do not have a firm grasp about what scripture teaches.
1 John 2:12-14 describes the path of spiritual maturity.
I am writing to you, little children, because your sins have been forgiven you for His name’s sake. I am writing to you, fathers, because you know Him who has been from the beginning. I am writing to you, young men, because you have overcome the evil one. I have written to you, children, because you know the Father. I have written to you, fathers, because you know Him who has been from the beginning. I have written to you, young men, because you are strong, and the word of God abides in you, and you have overcome the evil one. (NASB) 1 John 2:12-14
Notice that the Holy Spirit describes the pattern of spiritual growth as starting from a “little child,” continuing to a “young man,” and then maturing into a “father” of the faith. Little children simply know that their sins are forgiven, but young men are strong, are having victory over the evil one, and know the Word of God. Young men in the faith will not engage in silly arguments about the meaning of various passages in the Bible. It is a sin. Read the following passage from 2 Timothy.
But refuse foolish and ignorant speculations, knowing that they produce quarrels. The Lord’s bond-servant must not be quarrelsome, but be kind to all, able to teach, patient when wronged, with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth, and they may come to their senses and escape from the snare of the devil, having been held captive by him to do his will. (NASB) 2 Timothy 2:23-26
However, there are also serious issues such as false teaching that Christians must sometimes defend against. We call it false doctrine or heresy. A spiritual young man or woman will be able to understand when someone is teaching false doctrine and will be able to either help him/her understand or help others understand that what is being taught is error. Church leaders must be able to defend against false doctrine,
. . . holding fast the faithful word which is in accordance with the teaching, so that he will be able both to exhort in sound doctrine and to refute those who contradict. For there are many rebellious men, empty talkers and deceivers . . . who must be silenced because they are upsetting whole families, teaching things they should not teach for the sake of sordid gain. (NASB) Titus 1:9-11
The mark of a person who is a spiritual young man is that he is having increasing victory over sin and has a firm grasp on scripture. He knows the Bible.
A spiritual father is one who not only knows that his/her sins are forgiven, but is having victory over sin, and really knows the Bible. He knows God in a deep, intimate, meaningful way. He/she is searching and seeking to know God. He/she is experiencing a deeper and more meaningful relationship with God. Would you like to become a spiritual father? If so, may I encourage you two read two articles: Heb 5:11-14 and God’s Greatest Passion?