Matthew Poole and continuators on Matthew 10:39

39 He that findeth his life, shall lose it: and he that loseth his life for my sake shall find it.

Iohn Ch. 12.25. giveth us a Commentary upon these Words thus. He that loveth his Life shall lose it, and he that hateth his Life in this World, shall keep it unto Life Eternal. He in this Text is said to find his Life, who thinks that he hath found, that is, saved it, who is so much in love with his Life, that rather than he will lose it, he will lose Gods favour, deny the Lord that bought him, deny the most Fundamental Truths of the Gospel. The Man that doth thus (saith Christ) shall lose it, possibly, he shall not obtain the end he aimeth at here, but if he doth, he shall lose Eternal Life. When on the contrary, he that is Valiant for the Truth, shall sometimes be preserved, notwithstanding his Enemies rage, but if this happens not, yet he shall have Life Eternal, his Mortality shall be swallowed up in Life.

Marginal references: Luke 17.33.