John Gills Exposition of the Bible Commentary - 1 Samuel 17:28
And Eliab his eldest brother heard when he spake unto the men ,.... Heard the questions he put to them, by which he perceived his inclination: and Eliab's anger was kindled against David ; because what he had said carried in it a tacit reproach of him, and others, that they had not the courage, and did not attempt to encounter with the Philistine; or the displeasure he expressed was either out of affection to him, fearing, or being assured almost he would perish in the enterprise; or... 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