30 As He spoke these things, many came to believe in Him. 31 So Jesus was saying to those Jews who had believed Him, “If you continue in My word, then you are truly disciples of Mine; 32 and you will know the truth, and the truth will make you free.” John 8:30–32, NASB
Those who like to portray our Lord Jesus Christ as just a bundle of love who would never do or say anything to any that could possible cause offense obviously have never studied what he actually said in Matthew, Mark, Luke and John. In our Lord’s parable of the soils (Matthew 13:1-23; Mark 4:1-20; Luke 8:4-15) he gives us a contrast between genuine believers and those who only appear to be and others who obviously are not. I posted on this several years ago here. The point is that just are there are very religious people who have done religious works and may even appear to be “christian” to some, our Lord says that the criterion to be one of his is not by one’s own choice, but by first being chosen by God, prepared by God, then having the Good News sown into the soil of the heart by him. As our Lord said in John 8:30-32 (above), those who are truly his are those who not only hear his Word, but continue in it. They are truly his disciples and they will know the truth and the truth will make them free.