Whoever loves his life loses it, and whoever hates his life in this world will keep it for eternal life.
In context
23Jesus answered them, “The hour has come for the Son of Man to be glorified. 24Very truly I tell you, unless a grain of wheat falls into the earth and dies, it remains a single grain; but if it dies, it bears much fruit. 25Whoever loves his life loses it, and whoever hates his life in this world will keep it for eternal life. 26If anyone would serve me, let him follow me; and where I am, there my servant will be too. If anyone serves me, the Father will honor him. 27Now my soul is in turmoil. And what shall I say — ‘Father, save me from this hour’? No: it was for this very hour that I came.