Once the saving gospel has been clearly presented, and is rejected by the hearers, then the witnessing believer should not argue further for a conversion. There are multitudes of others still waiting to hear, and the Christian should go on to present the gospel to them. The Holy Spirit must convict those he leaves.

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8