'Future' in the Bible

Then when your child asks you in the future, "What is this?', you are to say to him, "The LORD brought us out of Egypt, from the house of bondage with a strong show of force.

Moses said, "This is what the LORD has commanded: "Set aside one omer of it for future generations, so that they may see the food with which I fed you in the desert when I brought you out of the land of Egypt.'"

Then Moses told Aaron, "Take a jar, fill it with about one omer of manna, and place it in the LORD's presence, to be preserved throughout future generations."