'Whether' in the Bible

They watched him, whether he would heal him on the Sabbath day, that they might accuse him.

Watch therefore, for you don't know when the lord of the house is coming, whether at evening, or at midnight, or when the rooster crows, or in the morning;

One ran, and filling a sponge full of vinegar, put it on a reed, and gave it to him to drink, saying, "Let him be. Let's see whether Elijah comes to take him down."

Pilate marveled if he were already dead; and summoning the centurion, he asked him whether he had been dead long.