There remains, then, a Sabbath-rest for the people of God; for anyone who enters God’s rest also rests from their works,just as God did from his. Let us, therefore, make every effort to enter that rest, so that no one will perish by following their example of disobedience.
For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart. Nothing in all creation is hidden from God’s sight. Everything is uncovered and laid bare before the eyes of him to whom we must give account.
In the culture of praying the prayer and asking Jesus into our hearts, once saved always saved, the idea of a hard earned faith seems mistaken at best. It is interesting, considering Jesus’s parable of the sower, that one can believe with joy, but fall away when the trials come (Luke 8:13). In contrast to the one who perseveres, and by so doing yields a significant crop (Luke 8:15).
Trusting in God by trusting in his word and the sea-change that brings is at the heart of this. It is not just a one time thing, and it is not so much incremental. We can see in Jesus’s parable of the sower, that the person who ends up falling away, initially receives the word with joy, and for all intents and purposes looks genuine, believing for a while (Luke 8:13). But when testing comes, which we see in the other gospel can involve “trouble or persecution because of the word, they quickly fall away” (Matthew 13:21; see also Mark 4:16-17).
Back to the Hebrews passage, some of this might not fit all that well into our doctrine or what we’ve been taught in church. I think especially of churches which have taught once saved, always saved, though it all depends on all those churches teach. The point is that we can neither take faith for granted, nor be careless concerning it, just because we made some commitment once upon a time. That faith has to survive through all the rough patches and troubles life throws our way. And according to Hebrews, that takes effort on our part. It seems like an oxymoron, but we’re to make every effort to enter into that rest. And this is an issue of obedience, whether or not we will obey God.
What we need is God’s word to help us along the way, by correcting us. We need to be committed to being under that word, to hear it and abide by it (Hebrews 4:12-13).
Sounds rather stark and threatening. But that’s not because God is that way, but rather because we are so prone to wander and get lost. God is faithful, and we can depend on God’s word. God will help us see what we need to see to keep going. And to learn to live in the rest God provides for us in and through Jesus.