Not so much the gift, but the Giver. And their hearts were filled to overflowing with worship.
Looking back on what God had done, the outpouring of their hearts was to marvel about Him and trust Him for the future. Not just because of what He had done, but because of who He is.
They praised Him for being their salvation, their strength, their joy. Their peace, their guide, their inheritance. Because even though He gives those things, really He is giving of Himself... because He is peace, and He is joy, isn't He?
You can see that their focus is on the Giver, not on themselves, or even the blessings they have gained. The eyes of faith don't depend on external circumstances to draw the heart to worship anyway. They know with confidence that,
"His divine power has given to us all things that pertain to life and godliness..." 2 Peter 1:3
no matter what the circumstances look like.
Granted, the Israelites had just seen the salvation of their God; all the aspects of life hadn't had time to get in the way. As they headed into the wilderness they would wander for the next 40 years, they were quick to switch their tune.
I am like that too. Quick to forget how wonderful He is.
But this wilderness stretching in front of me makes me want to look back to the Giver. If I know enough about who He really is, I can trust Him for all that is ahead.
Because after all, He gives of Himself.
flowers above are from Grandma E