Vocabulary

ਜਾਨ ਦੇਣ
jaan den

to give one's life (devotion idiom, not literal death)

verb phrase
In this song
Black & White · Diljit Dosanjh
Verse 2
ਓ ਤੇਰੇ ਪਿੱਛੇ ਫਿਰਦਾ ਏ ਜਾਨ ਦੇਣ ਨੂੰ
o tere pichhe firda ae jaan den nu
He's out there chasing you, ready to give his life