“And when I passed by you and saw you wallowing in your blood, I said to you in your blood, ‘Live!’ I said to you in your blood, ‘Live!’
If you don't understand the allusion, read verse 5. Israel is compared to aborted infants left on the side of the road to be exposed, tossed out like common trash. Unwanted by the world and unloved, that is until the LORD passed by.
He saw us kicking about, freshly born infants still covered in blood, crying and helpless, and he said to us, "Live!" No longer unwanted, no longer a mistake, no longer dying, but now commanded to live. This life that would have gone to waste has been given new hope, new meaning, and new life. No longer must we die, but we must live! It is a command.
So even when the world doesn't want you, even if your own mother and father forsake you, and even if the everyone turns against you, know that God wants you to live. God values your life. You are being taken care of even as you lay kicking and screaming in your own blood, tossed out and trampled on, defiled and broken down. You are loved so "Live!"