The Sure Mercies of David

What is the significance of this subject? Why did the blind man cry 'Jesus Thou Son of David'? Why did they try to silence this blind man? How did this blind man acknowledge Christ in every way Scripture described Him? Why did Christ heal physically? How long did it take for the blind man to gain his sight? How is a 'covenant' a will, a testament, and why did God use it in His purpose to save His sinners? Why did Christ stop for this crying blind man? What is the Gospel of God? Why is the jesus of this generation so popular? Has Jesus always been the Son of God? Why did Jesus have to come in the flesh? How are all born blind and some given sight? How is the entire Bible one book, the autobiography of Christ Jesus the LORD?