5 Now Saul was coming from the field behind the oxen; and Saul said, "What ails the people, that they are weeping?" So they told him the tidings of the men of Jabesh. 6 And the spirit of God came mightily upon Saul when he heard these words, and his anger was greatly kindled. 7 He took a yoke of oxen, and cut them in pieces and sent them throughout all the territory of Israel by the hand of messengers, saying, "Whoever does not come out after Saul and Samuel, so shall it be done to his oxen!" Then the dread of the Lord fell upon the people, and they came out as one man. 8 When he mustered them at Bezek, the men of Israel were three hundred thousand, and the men of Judah thirty thousand. 9 And they said to the messengers who had come, "Thus shall you say to the men of Ja'besh-gil'ead: 'Tomorrow, by the time the sun is hot, you shall have deliverance.'" When the messengers came and told the men of Jabesh, they were glad. 10 Therefore the men of Jabesh said, "Tomorrow we will give ourselves up to you, and you may do to us whatever seems good to you." 11 And on the morrow Saul put the people in three companies; and they came into the midst of the camp in the morning watch, and cut down the Ammonites until the heat of the day; and those who survived were scattered, so that no two of them were left together.

Matthew Henry's Commentary on 1 Samuel 11:5-11

Commentary on 1 Samuel 11:1-11

(Read 1 Samuel 11:1-11)

The first fruit of Saul's government was the rescue of Jabesh-gilead from the Ammonites. To save their lives, men will part with liberty, and even consent to have their eyes put out; is it then no wisdom to part with that sin which is as dear to us as our right eye, rather than to be cast into hell-fire? See the faith and confidence of Saul, and, grounded thereon, his courage and resolution. See also his activity in this business. When the Spirit of the Lord comes upon men, it will make them expert, even without experience. When zeal for the glory of God, and love for the brethren, urge men to earnest efforts, and when God is pleased to help, great effects may speedily be produced.