This Bible contradiction is from the Skeptic's Annotated Bible.
1 Samuel 7:13 View context
So the Philistines were subdued, and they came no more into the coast of Israel: and the hand of the LORD was against the Philistines all the days of Samuel.
1 Samuel 13:5-10 View context
And the Philistines gathered themselves together to fight with Israel, thirty thousand chariots, and six thousand horsemen, and people as the sand which [is] on the sea shore in multitude: and they came up, and pitched in Michmash, eastward from Beth-aven.
When the men of Israel saw that they were in a strait, (for the people were distressed,) then the people did hide themselves in caves, and in thickets, and in rocks, and in high places, and in pits.
And [some of] the Hebrews went over Jordan to the land of Gad and Gilead. As for Saul, he [was] yet in Gilgal, and all the people followed him trembling.
And he tarried seven days, according to the set time that Samuel [had appointed]: but Samuel came not to Gilgal; and the people were scattered from him.
And Saul said, Bring hither a burnt offering to me, and peace offerings. And he offered the burnt offering.
And it came to pass, that as soon as he had made an end of offering the burnt offering, behold, Samuel came; and Saul went out to meet him, that he might salute him.