See that you do not refuse him who speaks. For if they did not escape when they refused him who warned on the earth, how much more will we not escape who turn away from him who warns from heaven,

Faith led Noah, when he was warned by God of things no one then saw, in obedience to the warning to build an ark in which to save his family, and by such faith he condemned the world, and came to possess that uprightness which faith produces.

who serve a copy and shadow of the heavenly things, even as Moses was warned by God when he was about to make the tabernacle, for he said, "See, you shall make everything according to the pattern that was shown to you on the mountain."

Further, if he were still on earth, he would not be a priest at all, for there are priests enough provided to offer the gifts the Law prescribes??5 though the service they engage in is only a shadow and imitation of that in heaven. For when Moses was going to make the tent of worship he was warned, "Be sure to make it all just like the pattern you were shown on the mountain."

and yet the warning continues to be spoken: "If you but hear His voice, you must not harden your hearts as they did in provoking me."

But continually encourage one another every day, as long as it is called “Today” [and there is an opportunity], so that none of you will be hardened [into settled rebellion] by the deceitfulness of sin [its cleverness, delusive glamour, and sophistication].

not forsaking our meeting together [as believers for worship and instruction], as is the habit of some, but encouraging one another; and all the more [faithfully] as you see the day [of Christ’s return] approaching.

For this reason--as the Holy Spirit warns us, "To-day, if you hear His voice,

Look carefully [at how you are living] so that no one falls away from God's unearned favor, and that no "poisonous plant sprouts up" to cause trouble and corrupt many people [Note: This is an analogy from Deut. 29:16-18 being used as a warning against the evil influence of wicked people],