Why do anything?
The reason and purpose as to the 'why,' of everyone's existence, is to be loved by God, to love God, and to love each other.
All Words of the Bible are love, to be used 'to love.'
Love includes using all of the Word in having exceeding care and sensitivity toward the feelings of others. Love also includes a conduct of loving kindness, graciousness, feeling the pain and joy of others as if it is one's own pain and joy, and in all ways progressing and seeking to grow in loving God and each other as God loves.
Being sterile in the Word, is not the Word.
Using the Word, the law, parables, Proverbs, Psalms, etc., without the purpose to conduct love, is sin against the law.
Love, including and foremost within the Word and within the Spirit, which are one and the same, is the reason and purpose of life.
1st Epistle of John 3:11 For this is the message that ye heard from the beginning, that we should love one another.