It is important to follow these instructions today.
Read: Hebrews 4:6-7
So God’s rest is there for people to enter, but those who first heard this good news failed to enter because they disobeyed God. 7 So God set another time for entering his rest, and that time is today. God announced this through David much later in the words already quoted:
“Today when you hear his voice, don’t harden your hearts.”