Being an historical record, the book of Samuel is largely written in prose. There are, however, a number of poetic sections interspersed throughout the narrative. Most significantly, the song of Hannah (1 Samuel 2:1–10) and David (2 Samuel 22:1 – 23:7) serve to provide a frame for the composition of the book as a whole. Both songs rejoice in deliverance from enemies (1 Samuel 2:1; 2 Samuel 22:3–4). Both songs celebrate God as a rock (1 Samuel 2:2; 2 Samuel 22:32), speak of Sheol (1 Samuel 2:6; 2 Samuel 22:6), and describe God’s thundering in the darkness (1 Samuel 2:10; 2 Samuel 22:14, 2 Samuel 22:29), his protection of the faithful (1 Samuel 2:9; 2 Samuel 22:26), and his steadfast love for his anointed (1 Samuel 2:10; 2 Samuel 22:51; 2 Samuel 23:1). Taking its place at the beginning of the book, Hannah’s song is a summary of the themes that will fill the book as a whole.1
Samuel can be divided into three sections in accordance with the characters that feature most prominently:2
Samuel (1 Samuel 1–8)
Saul (1 Samuel 9–15)
David (1 Samuel 16–2 Samuel 24)
If we limit ourselves to 1 Samuel, then Ralph Davis’s division can also be helpful:3
The prophet from God’s grace (1 Samuel 1–8)
The king in God’s place (1 Samuel 8–14)
The man after God’s heart (1 Samuel 15–31)
1 There was a certain man of Ramathaim-zophim of the hill country of Ephraim whose name was Elkanah the son of Jeroham, son of Elihu, son of Tohu, son of Zuph, an Ephrathite.