The attacks against the doctrine of the investigative judgement have increased recently and require deeper study. One of the early proponents of righteousness by faith was misled into preaching against the investigative judgement, showing how dangerous it is to reject truth. The investigative judgement arose from study after the 1844 disappointment to understand if the calculations were correct, leading to the discovery of the sanctuary truth and the realisation that the event expected was not the second coming but Christ's entrance into the most holy place. The investigative judgement is an integral part of the sanctuary message and is found throughout the Bible, with obedience being required for acceptance into God's kingdom. True love is shown through obedience to God and His law.