John 12:12 The next day the great crowd that had come for the festival heard that Jesus was on his way to Jerusalem. They took palm branches and went out to meet him, shouting, “Hosanna!”, “Blessed is he who comes in the name of the Lord!”, “Blessed is the king of Israel!” Jesus found a young donkey and sat on it, as it is written: “Do not be afraid, Daughter Zion; see, your king is coming, seated on a donkey’s colt.” At first his disciples did not understand all this. Only after Jesus was glorified did they realize that these things had been written about him and that these things had been done to him. Now the crowd that was with him when he called Lazarus from the tomb and raised him from the dead continued to spread the word. Many people, because they had heard that he had performed this sign, went out to meet him. So the Pharisees said to one another, “See, this is getting us nowhere. Look how the whole world has gone after him!”
Luke 19:35 When he came near the place where the road goes down the Mount of Olives, the whole crowd of disciples began joyfully to praise God in loud voices for all the miracles they had seen: “Blessed is the king who comes in the name of the Lord!” “Peace in heaven and glory in the highest!” Some of the Pharisees in the crowd said to Jesus, “Teacher, rebuke your disciples!” “I tell you,” he replied, “if they keep quiet, the stones will cry out.”
“The donkey was not normally used by a warlike person. It was the animal of a man of peace, a priest, a merchant, or the like. It might also be used by a person of importance but in connection with peaceable purposes. The donkey speaks of peace.” (Morris) “They greeted Jesus as a king, though ignorant of the nature of His kingship. It would seem that they looked upon Him as a potential nationalist leader, with whose help they might be able to become wholly independent of foreign powers who ruled over them.”
What were the people really praising Jesus for? Was it for raising Lazarus from the dead? Was it because they anticipated Him to become their mighty King? Was it because, on the coming Passover, they thought He was their deliverer from their Roman oppressors? When we praise and worship Jesus it is because He is King of Kings, Lord of Lords, Son of God, and Savior. It should never be about what we can get from Him, but because of who He is. Granted, we are blessed beyond all measure, we are forgiven of sin, we are redeemed, we are redeemed, forgiven, and born again, we are given and filled with the Holy Spirit, we are given His written Word, we are given joy, peace, love, hope, power, refuge, and the promises of eternal life and His coming again. These blessings we can truly be thankful for, but our praise and worship should be for who He is. I guess this is a very fine line. Thankfulness can be an expression of praise and worship. However, the line can grow strangely wide when our heart speaks thankfulness for what we can get rather than for who the Giver is.