Iyov | Job ch.13 - It Must Be Love!

Rabbi Yehoshua ben Hyrcanus taught: Job served the Holy One, Blessed be He, only out of love, as it is stated: “Though He will slay me, still I will trust in Him” (Job 13:15). Why is Iyov the ultimate lover of God, and why does he accuse his interlocutors as being "creators of lies, healers of idols" in their defence of the Almighty?