There are those who did once claim to be Christians, but then say that they are not. Now they refuse to admit that Jesus is the Christ. They did not really believe in the Lord Jesus and they do not know Him.
The day will come when they will have to stand before God. Then Christ will deny them. He will say that He does not know them. They will not live with Him in that day.
James 2:18
Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.
There are many who profess to be Christian now, but the fact that they are not comes out when they refuse to admit that Jesus is the Christ. This is self evident.
The point I am trying to make is that I believe, which does not necessarily mean it is the truth, that one could truly be an undenying Christian but be so out of whack with this bipolar problem that they would commit suicide in spite of the fact that they know the Hope of everlasting life through Jesus. Doesn’t mean I don’t think it to be selfish.
I know I could be wrong because we are told that we will face no temptation that we cannot withstand if we only would rely on His strength.