SALVATION Isaiah 30:15

This is what the Sovereign LORD, the Holy One of Israel, says: "In repentance and rest is your salvation, in quietness and trust is your strength, but you would have none of it."

This is what the Sovereign LORD 
Jeremiah 7:20  " 'Therefore this is what the Sovereign LORD says: My anger and my wrath will be poured out on this place--on man and beast, on the trees of the field and on the crops of your land--and it will burn and not be quenched.' "
Ezekiel 3:11  "Go now to your people in exile and speak to them. Say to them, 'This is what the Sovereign LORD says,' whether they listen or fail to listen."

the Holy One of Israel 
Isaiah 30:12-13  Therefore this is what the Holy One of Israel says: "Because you have rejected this message, relied on oppression and depended on deceit, this sin will become for you like a high wall, cracked and bulging, that collapses suddenly, in an instant."

In repentance and rest is your salvation 
Exodus 14:14  "The LORD will fight for you; you need only to be still."
Joshua 1:13  "Remember the command that Moses the servant of the LORD gave you after he said, 'The LORD your God will give you rest by giving you this land.' "

in quietness and trust is your strength 
2 Chronicles 20:12  "Our God, will you not judge them? For we have no power to face this vast army that is attacking us. We do not know what to do, but our eyes are on you."
Isaiah 32:17  The fruit of that righteousness will be peace; its effect will be quietness and confidence forever.

but you would have none of it 
Isaiah 8:6-7  "Because this people has rejected the gently flowing waters of Shiloah and rejoices over Rezin the son of Remaliah, therefore the Lord is about to bring against them the mighty floodwaters of the Euphrates--the king of Assyria with all his pomp."
Isaiah 42:24  Who handed Jacob over to become loot, and Israel to the plunderers? Was it not the LORD, against whom we have sinned ? For they would not follow his ways; they did not obey his law.
Isaiah 57:17  "I was enraged by their sinful greed; I punished them, and hid my face in anger, yet they kept on in their willful ways.

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide.