Then he said unto them, Go your way, eat the fat, and drink the sweet, and send portions unto them for whom nothing is prepared: for this day is holy unto our Lord: neither be ye sorry; for the joy of the Lord is your strength. (Nehemiah 8:10, KJV)
Now unto him that is able to keep you from falling, and to present you faultless before the presence of his glory with exceeding joy. (Jude 1:24, KJV)
What I mean by being too happy is that our flesh and carnality sometimes gets the best of us. When we let down our guard and shield of faith, we become venerable to pride and the things of the world that could led us outside of God’s will and joy. The joy of the Lord is our strength when we are doing His will, but when we step outside of God’s will we are giving room for the devil, things of the flesh, and the world to deceive us. The Apostle Paul in his epistles reminded the people of God at The Church of Corinth, which were call Corinthians to be sober minded and don’t get carry away with themselves in their bragging and pride concerning the things of God. Therefore, our joy is based on doing God’s will in every aspect of our lives in order to remain sealed with the Lord until He comes back to rule, to reign, and to judge the whole world.
We must endure even as our Lord Jesus endured through His sorrows as man and King of Sorrows because of the joy that was set before Him concerning the will of God for all His creation and to dwell with His creation forever.
Looking unto Jesus the author and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God. (Hebrews 12:2, KJV)