Yohanes 3:6

3:6 What is born of the flesh is flesh, ¹  and what is born of the Spirit is spirit.

Yohanes 15:13

15:13 No one has greater love than this – that one lays down his life ²  for his friends.

[3:6]  ¹ sn What is born of the flesh is flesh, i.e., what is born of physical heritage is physical. (It is interesting to compare this terminology with that of the dialogue in John 4, especially 4:23, 24.) For John the “flesh” (σάρξ, sarx) emphasizes merely the weakness and mortality of the creature – a neutral term, not necessarily sinful as in Paul. This is confirmed by the reference in John 1:14 to the Logos becoming “flesh.” The author avoids associating sinfulness with the incarnate Christ.

[15:13]  ² tn Or “one dies willingly.”