Lay down your life - Idioms by The Free Dictionary
lay down your life
lay down (one's) life
To sacrifice one's life (for someone or something); to die (for a purpose). Our soldiers are out there laying down their lives for our freedom, and we should show our support. To lay down one's life to save a stranger is the ultimate sacrifice.
lay down your ˈlife (for somebody/something) (literary) die for your country, a cause etc: Thousands of young men laid down their lives in the war so that we could live in freedom.
References in periodicals archive
He taught me many things, but the most important is that it takes the greatest love to lay down your life
for your friends.