Psalm 95:6-11 & Hebrews 4 & Isaiah 55:9-11

6 Come, let us bow down in worship,
let us kneel before the LORD our Maker;

7 for he is our God
and we are the people of his pasture,
the flock under his care.
Today, if you hear his voice,

8 do not harden your hearts as you did at Meribah, [a]
as you did that day at Massah [b] in the desert,

9 where your fathers tested and tried me,
though they had seen what I did.

10 For forty years I was angry with that generation;
I said, "They are a people whose hearts go astray,
and they have not known my ways."

11 So I declared on oath in my anger,
"They shall never enter my rest."

Hebrews 4
A Sabbath-Rest for the People of God
1Therefore, since the promise of entering his rest still stands, let us be careful that none of you be found to have fallen short of it. 2For we also have had the gospel preached to us, just as they did; but the message they heard was of no value to them, because those who heard did not combine it with faith.[a] 3Now we who have believed enter that rest, just as God has said,
"So I declared on oath in my anger,
'They shall never enter my rest.' "[b] And yet his work has been finished since the creation of the world. 4For somewhere he has spoken about the seventh day in these words: "And on the seventh day God rested from all his work."[c] 5And again in the passage above he says, "They shall never enter my rest."
6It still remains that some will enter that rest, and those who formerly had the gospel preached to them did not go in, because of their disobedience. 7Therefore God again set a certain day, calling it Today, when a long time later he spoke through David, as was said before:
"Today, if you hear his voice,
do not harden your hearts."[d] 8For if Joshua had given them rest, God would not have spoken later about another day. 9There remains, then, a Sabbath-rest for the people of God; 10for anyone who enters God's rest also rests from his own work, just as God did from his. 11Let us, therefore, make every effort to enter that rest, so that no one will fall by following their example of disobedience.

12For the word of God is living 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. 13Nothing 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.

Jesus the Great High Priest
14Therefore, since we have a great high priest who has gone through the heavens,[e] Jesus the Son of God, let us hold firmly to the faith we profess. 15For we do not have a high priest who is unable to sympathize with our weaknesses, but we have one who has been tempted in every way, just as we are—yet was without sin. 16Let us then approach the throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need.

Isaiah 55:9-11 (New International Version)

9 "As the heavens are higher than the earth,
so are my ways higher than your ways
and my thoughts than your thoughts.

10 As the rain and the snow
come down from heaven,
and do not return to it
without watering the earth
and making it bud and flourish,
so that it yields seed for the sower and bread for the eater,

11 so is my word that goes out from my mouth:
It will not return to me empty,
but will accomplish what I desire
and achieve the purpose for which I sent it.