A main theme in this psalm is what it means to be blessed. Here "blessed" refers to anyone who is well off because of a good relationship to God. The contrasting theme is that there are ungodly people, those who refuse to honor God. (See: [[rc://en/tw/dict/bible/kt/bless]] and [[rc://en/tw/dict/bible/kt/godly]])
There are several words in this psalm for those who oppose God: "the wicked" (those who do evil), "sinners" (those who ignore God's law), and "mockers" (those who mock God and the righteous people). (See: [[rc://en/tw/dict/bible/kt/evil]], [[rc://en/tw/dict/bible/kt/sin]] and [[rc://en/tw/dict/bible/kt/lawofmoses]] and [[rc://en/tw/dict/bible/kt/righteous]])