but when they came up from Egypt, and Israel went through the wilderness to the Red Sea, and came to Kadesh;
Although God gave Jephthah his special help, Jephthah was still only a slightly reformed bandit. He knew little of the character of God, and thought that by making a vow to sacrifice a person as a burnt offering to God, he could buy God’s help and so ensure victory. Human sacrifice was against God’s law (see Leviticus 18:21; Deuteronomy 12:31), but the people had forgotten that law and followed the religions of the neighbouring nations (see 10:6; cf. 2 Kings 3:26-27). Having made his vow, Jephthah went to battle and won a great victory (29-33). On his return from battle, Jephthah found that the person whom he had to offer according to his vow was his only daughter. Nevertheless, he kept his vow and sacrificed her (34-40).