At the beginning of my Christian experience, I counted the days, weeks, and months that I had been following Jesus. I thought it would be a real achievement if I could make it to the four-year mark! After forty years, I now know that it is not an achievement but a matter of grace.

In today’s passage, the author urges readers to persist in faith. “See to it, brothers and sisters, that none of you has a sinful, unbelieving heart that turns away from the living God” (v. 12). It is one thing to struggle with sin and wrestle with our doubts. All believers face such trials. It is something else to “turn away” from God. While some turn from God by blatantly choosing sin, the author warns that some were in danger of taking a different path. They were tempted to replace Jesus with a righteousness of their own making. Anyone who would turn away from Christ’s gift of righteousness to rely on the Law of Moses rejected the very righteousness they hoped to find. Instead of honoring God, but revering the Law more than Christ, they committed the same sin as those who first received the Law (vv. 16–19). Unbelief kept them from experiencing God’s rest (v. 19).

To guard against this, the author calls for vigilance and encouragement. Individually, they were to examine their hearts and root out unbelief. Collectively, they were to encourage each other in the faith (vv. 12–13). The kind of faith God desires from those who follow Jesus is as enduring as it is responsive (vv. 14–15). It is not a momentary decision that is easily set aside but a conviction that we hold “firmly to the very end” (v. 14). It does not harden our hearts when we hear God’s voice.