The whole of the text has made clear time and time again that Jonah does not have a righteous indignation against Nineveh, but instead a very hate-filled zeal against those whom the Lord has designed to show mercy and grace towards. This is a hatred somewhat akin to Saul of Tarsus prior to his meeting the Lord Jesus. Saul was zealously seeking the destruction of the church of Christ. With a hatred that was directly opposed to the favor of God in the grace of the Lord Jesus. 

Psalm 100 is a bit different from other psalms. It's shorter and much more compact, but it contains a lot. Another thing that you'll notice right off the bat is that it has a different rhythm than a lot of the other psalms. Many of the other Psalms have a lot of repetition. While there is some repetition in Psalm 100, each line plays off of a different instruction or verb. Today we will look at the actions and instructions that we’re given in Psalm 100. 

For Christians, after friends or family have died, is it weird to visit their graves periodically?

There's a lot of different wisdom within the Psalms. But Psalm 1 is a great, great launching point. Wisdom says, regardless of what obstructions are in your way, I want to invite you to see what is true. God's word in wisdom and the wisdom of the Psalms invite us to see things the way they really are. Without all the obstacles, without all the obstructions. To see that obstacles are truly obstacles to our lives. To see that reality and knowing reality is really a good thing.