'Hadn't' in the Bible

for if we hadn't delayed, surely we would have returned a second time by now."

The men of the city said to him on the seventh day before the sun went down, "What is sweeter than honey? What is stronger than a lion?" He said to them, "If you hadn't plowed with my heifer, you wouldn't have found out my riddle."

and the lamp of God hadn't yet gone out, and Samuel had laid down [to sleep], in the temple of Yahweh, where the ark of God was;