This Bible contradiction is from the Skeptic's Annotated Bible.

Verses

She was saved by faith.

Hebrews 11:31 View context

By faith the harlot Rahab perished not with them that believed not, when she had received the spies with peace.

She was saved by works.

James 2:25 View context

Likewise also was not Rahab the harlot justified by works, when she had received the messengers, and had sent [them] out another way?