Isaiah 55
v.1
“Come, all you who are thirsty, come to the waters; and you who have no money, come, buy and eat! Come, buy wine and milk without money and without cost.
The contradiction on the surface is but intended to make emphatic this blessed truth, which I pray may reach your memories and hearts, that the only conditions are a sense of need, and a willingness to take-nothing less and nothing more. We must recognise our penury and must abandon self, and put away all ideas of having a finger in our own salvation, and be willing-which, strangely and sadly enough, many of us are not-to be under obligations to God’s unhelped and undeserved love for all.
v.2
Why spend money on what is not bread, and your labor on what does not satisfy? Listen, listen to me, and eat what is good, and your soul will delight in the richest of fare.
v.3-5
Give ear and come to me; hear me, that your soul may live. I will make an everlasting covenant with you, my faithful love promised to David. 4See, I have made him a witness to the peoples, a leader and commander of the peoples. 5Surely you will summon nations you know not, and nations that do not know you will hasten to you, because of the LORD your God, the Holy One of Israel, for he has endowed you with splendor.”
v.7
Let the wicked forsake his way and the evil man his thoughts. Let him turn to the Lord, and he will have mercy on him, and to our God, for he will freely pardon.
v.8
“For my thoughts are not your thoughts, neither are your ways my ways,” declares the Lord.
v.9
“As the heavens are higher than the earth, so are my ways higher than your ways and my thoughts than your thoughts.
v.11
so is my word that goes out from my mouth: It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it.
See more in Barnes on Isaiah 55 11 Isaiah55 v 11.
Intercession is speaking God back to God.