Question Text : “Is God cruel? I was shocked when Iread deuteronomy 28:15-68 full of curses”.
Answer Text : Your question of God being cruel is a against the Bible revelation which presents God as love (1Jn.4:8). Sinners get punished because they work against the operating principles of God and God is helpless. Now read on.
If God is love how are we to understand God punishing people for their sins? You must remember that God operates this universe using fixed laws which can NEVER be changed as long as this earth lasts (Psa.148:6). There are physical laws like the law of gravity. Can you imagine jumping from a high flat with out getting hurt? No one can break the law of gravity and can imagine that he would escape with out getting hurt. Scientists have discovered several of the physical laws and we use them for our benefit.
Now, God uses spiritual laws as well. And God has given in writing all the spiritual laws by which we need to abide by (Psa.147:19). One of the unchanging laws of God is “what a man sows, so he reaps”. And God has given us the freedom to choose life or death. Any one who breaks any of God’s written laws is bound to get hurt. God can not be blamed for the hurt as He has clearly told us what is what in His Word. He has given us the freedom to choose life or death.
Read what the Bible says about it. “Do not deceive yourselves; no one makes a fool of God. You will reap exactly what you plant. If you plant in the field of your natural desires, from it you will gather the harvest of death; if you plant in the field of the Spirit, from the Spirit you will gather the harvest of eternal life” (Gal 6:7-8 GNB). That is why Ezekiel would ask, “why should Israel die” (Eze.18:31).
In Dt.28 God is telling us clearly what will the result of obeying His laws or disobeying them. We can choose what we want in life. God is helpless if we choose to disobey Him. We will surely get hurt now and later our sin and our disobedience will tak e us to a place from where God has withdrawn His presence and the Bible calls in hell. This happens because God does NOT want to force any one to choose Him or to choose goodness only. If that was the case, we would have been like robots.