Isaiah 30:23-26 (ESV)
And he will give rain for the seed with which you sow the ground, and bread, the produce of the ground, which will be rich and plenteous. In that day your livestock will graze in large pastures, and the oxen and the donkeys that work the ground will eat seasoned fodder, which has been winnowed with shovel and fork. And on every lofty mountain and every high hill there will be brooks running with water, in the day of the great slaughter, when the towers fall. Moreover, the light of the moon will be as the light of the sun, and the light of the sun will be sevenfold, as the light of seven days, in the day when the LORD binds up the brokenness of his people, and heals the wounds inflicted by his blow.
The contrast in Isaiah between God’s discipline and God’s forgiveness and blessing over Israel is so strong. As we read each of these chapters we are told of God’s great wrath on the nation for their disobedience, and then, suddenly, we come across verses like those above. In one stroke of the pen, Isaiah writes about doom, and in the next, about blessing. Such is the life of Israel. Their disobedience toward God’s word is met with certain peril. Their obedience to God’s word is met with promised prosperity.
In the book of Ecclesiastes, Solomon asks 23 questions about life. He ponders all the riches and the wonders of the world and then asks questions about the real meaning of life and the purpose of life. In the end, this richest man of all times, concludes with the following. His last words in Ecclesiastes seem to sum up the very theme of Isaiah’s prophecy:
Ecclesiastes 12:13-14 (ESV)
The end of the matter; all has been heard. Fear God and keep his commandments, for this is the whole duty of man. For God will bring every deed into judgment, with every secret thing, whether good or evil.
At the end of the matter is obedience to God’s word and will. That is the summary from Solomon. It is the conclusion from Isaiah. It is the main theme of Jesus’ teaching:
Matthew 22:34-40 (ESV)
But when the Pharisees heard that he had silenced the Sadducees, they gathered together. And one of them, a lawyer, asked him a question to test him. “Teacher, which is the great commandment in the Law?” And he said to him, “You shall love the Lord your God with all your heart and with all your soul and with all your mind. This is the great and first commandment. And a second is like it: You shall love your neighbor as yourself. On these two commandments depend all the Law and the Prophets.”