What happened to God's Promises?

Read Psalm 89.

Ethan, who wrote this song, is mentioned in two other places in the Old Testament.  He was Levite and considered to be a very wise man.  But here he was conflicted.  On one hand, Ethan praised God for His many character traits such love and faithfulness.  Then, on the other, He felt God had abandoned the nation in anger.  He even accused the LORD of renouncing His covenant with David (v.39).

Indeed, the very basis of his prayer is the Davidic Covenant found in 1 Samuel 7:5-16.  There the LORD made these eternal promises to David and his descendants.
1. I will make your name great.
2. I will appoint a place for my people Israel and will plant them, so that they may dwell in their own place and be disturbed no more.
3. I will give you rest from all your enemies.
4. I will make you a house.
5. I will raise up offspring after you.
6. I will establish his kingdom forever.
7. Your throne shall be established forever.

The context of this psalm, however, appears to have been prompted by an enemy invasion and the king's loss of control over the nation.  So, what happened to all those promises?  God did not change.  Israel did.  Their disobedience resulted in them losing the blessings of those promises for a time.  With their national repentance and in God's timing He will restore and fulfill all His word.  Ultimately, Jesus, a direct and royal descendant of David (Matthew 1) will sit on that throne in Jerusalem and rule.

We must be careful not to evaluate life based upon temporal emotions.  God's word and His faithfulness do not change.  He is "the same yesterday, today and forever" (Hebrews 13:8).  When life does not make sense, God's word is still and always trustworthy.