Unconditional love... or I've received a promise so did you

The word of the Lord, God to the prophet Isaiah

Sing, barren woman, who has never had a baby.
Fill the air with song, you who've never been in labor!
You'll have far more children than all those childbearing women." God says so!

"Clear lots of ground for your tents! Make your tents large. Spread out! Think big! Use plenty of rope, drive the tent pegs deep. You're going to need lots of elbow room for your family.(You're going to take over whole nations; you're going to resettle abandoned cities.)

Don't be afraid—you're not going to be embarrassed.
Don't hold back—you're not going to come up short.
You'll forget all about the humiliations of your youth, and the indignities of being a widow will fade from memory. For your Maker is your bridegroom, his name, God-of Hosts!
Your Redeemer is The Holy of Israel, known as God of the whole earth.

You were like an abandoned wife, devastated with grief, and God welcomed you back, the wife of your youth can't ever be rejected," says your God.

Your Redeemer God says:
"I left you, but only for a fleeting moment. Now, with enormous compassion, I'm bringing you back.
In an outburst of anger I turned my back on you— but only for a moment.I t's with lasting love that I'm tenderly caring for you.

This is just like the days of Noah for me: I promised then that the waters of Noah would never again flood the earth. I'm promising now no more anger, no more rebuke.

For even if the mountains walk away and the hills fall to pieces, My love won't walk away from you, my covenant commitment of peace won't fall apart."

The God who has compassion on you says so.

Its loads better in the original Hebrew but I think this translation (adapted from the Message) does it justice.