 You see the past tense there? Something has happened. It's probably the return from captivity in Babylon. The Lord in the past has done something for us, and we are praising him for it. So God's people remembering, and they praise God for what has happened in the past. Now, verse 4 is not God's people remembering, but God's people requesting. This is their petition. They're making a request. It's a plea for the present. Not praise for the past, but a plea for the present. Verse 4.