'Lose' in the Bible

Jesus called the crowd together with His disciples, and said to them, “If anyone wishes to follow Me [as My disciple], he must deny himself [set aside selfish interests], and take up his cross [expressing a willingness to endure whatever may come] and follow Me [believing in Me, conforming to My example in living and, if need be, suffering or perhaps dying because of faith in Me].

For whosoever will save his life shall lose it; but whosoever shall lose his life for my sake and the gospel's, the same shall save it.

For what shall it profit a man, if he shall gain the whole world, and lose his own soul?

For whosoever shall give you a cup of water to drink in my name, because ye belong to Christ, verily I say unto you, he shall not lose his reward.

Salt is good, but if the salt should lose its flavor, how can you make it salty? Have salt among yourselves and be at peace with one another.”