Song of Solomon 8:6

Amplified Bible

“Under the apple tree I awakened you [to my love];
There your mother was in labor with you,
There she was in labor and gave you birth.
⁶ 
“Put me like a seal on your heart,
Like a seal on your arm;
For love is as strong as death,
Jealousy is as severe and cruel as Sheol (the place of the dead).
Its flashes are flashes of fire,
[A most vehement flame] the very flame of the ^[a]Lord!^(A)