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Hebrews 3 Bible study: Exhort one another day by day

The words "Today if you will hear his voice" come twice in Hebrews 3 (3:7, 3:15), and between them the letter speaks today to its own readers: "exhort one another day by day, so long as it is called “today”" (3:13). And behind rebellion (3:8, 3:15) and rebelled (3:16) are a Greek noun and the verb Strong's gives it as coming from, which the New Testament has nowhere else.

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“but exhort one another day by day, so long as it is called “today”, lest any one of you be hardened by the deceitfulness of sin.”
Hebrews 3:13 · World English Bible

Try it · Did you catch it?

“Hebrews 3:13 says to exhort one another day by day, so long as it is called today.”

Is that in Hebrews 3, or not? Make your call.

What's really going on

Holy brothers

In the text

The chapter opens: "Therefore, holy brothers, partakers of a heavenly calling, consider the Apostle and High Priest of our confession: Jesus," (3:1) "who was faithful to him who appointed him, as also Moses was in all his house." (3:2) "For he has been counted worthy of more glory than Moses, because he who built the house has more honor than the house." (3:3) (tap built) "For every house is built by someone; but he who built all things is God." (3:4) "Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken," (3:5) "but Christ is faithful as a Son over his house. We are his house, if we hold fast our confidence and the glorying of our hope firm to the end." (3:6). These notes give 3:1-6 as the WEB has them, and add nothing to their words. They say no more of Moses, of the house, or of who built it than the verses say (see Lines that land here).

Where the Old Testament leads here

Faithful as a servant, faithful as a Son

In the text

Numbers 12:7leads toHebrews 3:5-6

The LORD says, "My servant Moses is not so. He is faithful in all my house" (12:7). Hebrews uses the same words of Moses and sets Jesus beside him: "Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken, but Christ is faithful as a Son over his house" (Hebrews 3:5-6). The LORD says "my house"; Hebrews says "his house". Before this, Hebrews calls Jesus the one "who was faithful to him who appointed him, as also Moses was in all his house" (Hebrews 3:2). Hebrews doesn't name Numbers, but in the WEB these are the only two places that say "faithful in all" someone's house.

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The Greek word behind it

σήμερονsemeronsay SAY-mer-on

Strong's: "on the (i.e. this) day (or night current or just passed); generally, now (i.e. at present, hitherto)". "Therefore, even as the Holy Spirit says, “Today if you will hear his voice," (3:7): behind Today is this word. Hebrews has it eight times, in seven verses (counted in RP2018, and in all eight editions TAGNT compares), and three of those verses are in this chapter: 3:7, 3:13 and 3:15. In 3:13 it stands in the letter's own sentence: "so long as it is called “today”" (3:13). Favor's Luke 2 studies it too, and counts it in Luke.

For your group

Hebrews 3 Bible study questions

  1. 1"exhort one another day by day" (3:13). Who could you exhort, or be exhorted by, this week?
  2. 2"Today if you will hear his voice" (3:7). The chapter gives these words twice (3:7, 3:15). What stands out to you in them?
  3. 3"he who built all things is God" (3:4). Where this week did you notice something that reminded you of these words?

Leading a group? In Favor, everyone reads Hebrews 3 during the week and answers these questions privately. Answers stay sealed until you meet, then appear together, and you can print the week's sheet.

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Questions

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Last reviewed October 8, 2026. Scripture quotations are from the World English Bible, which is in the public domain. Hebrew and Greek words are checked against the original-language texts and public-domain lexicons. What we believe · Favor home