Praising God in advance

Today our worship leader was talking about Palm Sunday, and how the praising that went on that day was really a glimpse into what would come the week after. It got me thinking. Why don't we praise God in advance more? They were praising Jesus for a salvation they had yet to see, based on miracles they had seen. No, they didn't know what "the King who comes in the name of the Lord," was going to do, or how it was going to work, but they were praising Him, because they knew their salvation was near. We may not know how He's going to answer our prayers, but we know He's going to. We've seen Him do it. Why do we wait til after He answers them to give Him honor and glory? Praise Him now!