John Gills Exposition of the Bible Commentary - 1 Samuel 17:13
And the three eldest sons of Jesse went and followed Saul to the battle ,.... Either of their own accord, or rather at their father's motion, or however with his knowledge and consent, who because he could not go himself, willed them to go; and these were forward, and some of the foremost that followed Saul to the battle, being zealous and well disposed to defend their king and country: and the names of the three sons that went to the battle were Eliab the firstborn, and next unto him... read more
Matthew Henry's Complete Commentary - 1 Samuel 17:12-30
Forty days the two armies lay encamped facing one another, each advantageously posted, but neither forward to engage. Either they were parleying and treating of an accommodation or they were waiting for recruits; and perhaps there were frequent skirmishes between small detached parties. All this while, twice a day, morning and evening, did the insulting champion appear in the field and repeat his challenge, his own heart growing more and more proud for his not being answered and the people of... read more