Whoever finds his (autou | αὐτοῦ | gen sg masc3rd) life will lose it (autēn | αὐτήν | acc sg fem3rd), but whoever loses his (autou | αὐτοῦ | gen sg masc3rd) life for my sake will find it (autēn | αὐτήν | acc sg fem3rd).
Reference
Matthew 10:39
Sequence
179