Ardently desiring divine direction, Jephthah vows to God: “If you without fail give the sons of Ammon into my hand, it must also occur that the one coming out, who comes out of the doors of my house to meet me when I return in peace from the sons of Ammon, must also become Jehovah’s, and I must offer that one up as a burnt offering. ”
Jefta soovib väga jumalikku juhatust ja annab Jumalale tõotuse: „Kui sa tõesti annad ammonlased mu kätte, siis see, kes iganes väljub mu koja ustest mulle vastu, kui ma ammonlaste juurest pöördun rahuga tagasi, kuulugu Jehoovale ja ma ohverdan ta põletusohvriks! ”