Luke 18:39
And they which went before rebuked him, that he should hold his peace: but he cried so much the more, Thou Son of David, have mercy on me. And they which went before rebuked him, that he should hold his peace: but he cried so much the more, Thou Son of David, have mercy on me.
The blind man is Bartimaeus, and those going before rebuked him and told him to hold his peace and be quiet, but he persisted and cried so much the more for mercy. His persistence in appealing when others tried to silence him is what the verse holds up for imitation.
Jesus of Nazareth was passing by with a blessing He offers, and He must be earnestly sought while He is near and not allowed to pass without receiving it. The one cried to is addressed as Son of David, the great Physician, and the cry illustrates persistent faith seeking mercy from Him for healing. Seeking healing in this way means bringing the sick to Him in the arms of faith, laying aside all medicine and relying alone on His arm. In answer comfort comes and healing power is felt, yet the seeker still holds on unsatisfied for entire restoration and renewed strength to finish God's closing work.
The cry for mercy is prayer to receive sight, bringing through God's grace clearer sight and blessings more valuable than riches. God is prepared to impart knowledge and gives sight to the blind who ask Him for mercy, but He cannot give it while a person views things in a wrong light and would not make right use of it. The verse supplies the words, found in the word of God for encouragement, for a sinner turning eyes to Christ to call to Him for mercy in hope and expectation. That calling seeks in Christ the effectual remedy for the leprosy of sin by looking to the ransom provided and to God's mercy toward rebels and enemies, which has no parallel. Every person given the exalted privilege of being a co-worker with God should offer that sincere prayer daily. His commandment-keeping people and workers receive His blessing by glorifying His name, walking humbly before Him, coming down from self-exaltation, seeking the Lord with all heart and soul and strength and mind, searching the heart, setting in order what should have been set in order before, and preparing the King's highway.