Showing mercy to others is foundational to the Christian life, but what is not mercy needs to be known! There exists a dangerous false mercy, which the devil uses at times in his battle to deceive and lead people into sin. It is a very subtle Satanic temptation, which few seem aware of. Such false mercy, which is not mercy at all, often comes through helping the dangerous handicapped. While Christians are to help the blind, lame, crippled, poor, etc., that doesn’t mean we are to give them a platform to spread spiritual poison, if they are also a false teacher! To get more specific, to show misplaced mercy is to allow a physically handicapped person to testify or declare spiritual concepts, which can lethally stumble and deceive the listeners!
In the natural, if a handicapped person shot another in the heart with a gun, that person would be just as dead if it came through a healthy person, who was not physically handicapped. The danger in that case is getting shot in the heart. Spiritually the danger is in false teachings, especially the ones related somehow to eternal life. So if a healthy person or a handicapped person spreads spiritual poison (another gospel), which adversely affects the listeners, it makes no difference since the end result will be the same – spiritual death.
I know of one such occurrence where a woman in a wheelchair was transported to a congregation out of kindness to her, but there she would hand out CDs of a heretic teaching the doctrine of demons of eternal security! Sadly the pastor, who allegedly was opposed to that heresy, didn’t prevent her. It was a different person in the congregation, who rightly noticed the danger she was to others, even though she was handicapped! In that case, the person transporting that woman needed to stop taking her, since she was not going to respond to God’s truth. It was not mercy to take her where she could hurt and destroy others spiritually.
I know of another example of a man who has been providing a platform for a blind man, who is also a staunch once saved always saved advocate. The man providing the internet platform knows the security in sin gospel is false, yet seemingly has been taken down through the false mercy Satanic temptation! Again, that is not mercy at all. He is sharing in the wickedness of a false teacher and grace changer, which is very bad for him and the others who get deceived (2 John 10,11).