The Lord hates two things. He hates weights that weigh things heavier or lighter than they really are. He also hates measures that measure things larger or smaller than they really are.
You say,“ When will the New Moon feast be over? Then we can sell our grain. When will the Sabbath day come to an end? Then people can buy our wheat.” But you measure out less than the right amount. You raise your prices. You cheat others by using dishonest scales.