Psalm 9 is a lament Psalm.
Psalm 34 is classified as a psalm of thanksgiving and praise. It is also known as an acrostic psalm, where each verse begins with a successive letter of the Hebrew alphabet.
lament
Asking for deliverance
Psalm 91 has 16 verses and Psalm 100 has 5 verses. Psalm 91 is about how God protects us and Psalm 100 is about singing praises to the Lord.
Psalm 14 focuses on the way of the wicked. Psalm 15 focuses on the way of the righteous. It is a Psalm showing how a righteous person should live.
david
A melody. A song. Of the sons of Kor′ah.
A hymn or song of praise. It is also a doxology (conclusion) to the entire book of psalms.
It is about praise and music.
Psalm 16 is attributed to King David and was likely written during his lifetime, estimated to be around 1000 BC.
Psalm 139:16.