“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. Why spend money on what is not bread, and your labor on what does not satisfy? Isaiah 55:1-2
In the market place there are several things that you can get free when you buy two other items. The free stuff seems to have strings attached to them. It turns out that buy one get the second free is nothing more than a sales gimmick to entice you to buy. When it comes right down to the nitty-gritty there doesn’t appear to be anything on this earth that is really without a cost of some kind. However, there are some things God provides without cost to us.
God cursed mankind telling Adam that he would eat by the sweat of his brow (Genesis 3:19). God was talking about physical food that sustains the body. Still we are spirit beings and our spirit is sustained through the food (the knowledge of the spirit) that God provides. God is speaking about a specific food that serves the spirit of man causing him to think properly, grow and mature, to become a son of God. In other words, you can obtain knowledge to grow food in this world that sustains the body when knowing Jesus Christ, whom God sent ( John 17:3) is real food for eternal life.
In addition, God is talking about a services that does not involve money, but a way to exchange goods and services between God and us. The human race is not accustomed to a system of bartering that exchanges our lives for what you want. Yet we enter into a covenant with God promising to love and obey him for the rest of our life in turn Jesus forgives us of our sin and comes into our life to guide us as we mature in him.
Why spend money on what is not bread, and your labor on what does not satisfy? In this case God is offering something that is not bread and still satisfies. Nothing in the world system can satisfy our spirit and fulfill our life to the point we are content. What is it that God wants more than our earthly wealth, especially when everything belongs to God already?
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. Isaiah 55:3
God has placed a proposal on the table as if he were offering a contract stating the responsibilities of each partner. God is saying, listen to my plan. I am offering you a way to live forever and I am willing to make a covenant with you, as I had with David. I took David as a shepherd boy and made him into a king that Israel is still talking about today. I endowed him with splendor because he was a man after my own heart.
Seek the Lord while he may be found; call on him while he is near. Isaiah 55:6
David wanted to know God and he often sought him from his bed in times of prayer. The thrust of Isaiah 55:1 is to come to me (John 5:40; 7:37) and to the waters you who thirst and hunger for righteousness. The chosen men of God went to him often, just as the prophets who were seeking his counsel did. The reverence they had for God was the beginning of the knowledge that served as a guide to live by every day of their life.
Knowledge is a benefit from knowing God, but what these men valued even more was a personal relationship with God. This personal relationship with God cannot be bought with money. It requires you to spend time with him to know God first hand,
God is pleading with men to come to the place where he can be found. God said, you who are thirsty - come to the waters, come to the living water of God’s word. Again, God said in other words something to the same effect,
Come near to God and he will come near to you. Wash your hands, you sinners, and purify your hearts, you double-minded. James 4:8
No one finds God by chance; you must intentionally head in the direction that others like you have gone to find him. It is your sin that separates you from God and until you have dealt with your sin you will not find God. Jesus said,
“I am the way and the truth and the life. No one comes to the Father except through me. John 14:6
Jesus said the only way to God was through him, which means that you seek God through Jesus Christ. You must make a genuine effort on your part to accept the sacrifice Jesus Christ made to atone for your sin. Because sin is what separates you from God you must give an oath to obey Jesus Christ and turn from the sin that utterly destroys your relationship with God.
God allows you to accept or reject his plan, because he wants men to serve him of their free will. God has given each person the ability to govern his own life as they see fit and for that reason, you have the sovereign ability to choose the way you live. Instead of a whip to force submission, he pleads with you to take the plan of salvation to heart.
On the other hand, sin is slavery, a silent master that forces you to commit another sin to excuse or hide a previous sin. A cruel taskmaster sin produces a guilt that you are ashamed of and then forces you to deceive your friends into believing that someone else is at blame. Your original sin is covered up with a second and third lie intended to show you are not guilty of the matter. No matter what you do the truth always comes out into the open. The bible says, your sin will find you out and follow you to the throne of God where your sin will be dealt with for all times.