My Sermon Passage for Tomorrow

Hebrews 3:7-4:2

Therefore, just as the Holy Spirit says,
"Today if you hear His voice, Do not harden your hearts as when they provoked Me, As in the day of trial in the wilderness, 
Where your fathers tried [Me] by testing [Me], And saw My works for forty years. 
"Therefore I was angry with this generation, And said, 'They always go astray in their heart; And they did not know My ways'; As I swore in My wrath, 'They shall not enter My rest.'" 
Take care, brethren, lest there should be in any one of you an evil, unbelieving heart, in falling away from the living God. 
But encourage one another day after day, as long as it is [still] called "Today," lest any one of you be hardened by the deceitfulness of sin. 
For we have become partakers of Christ, if we hold fast the beginning of our assurance firm until the end; while it is said,
"Today if you hear His voice, Do not harden your hearts, as when they provoked Me." 
For who provoked [Him] when they had heard? Indeed, did not all those who came out of Egypt [led] by Moses? 
And with whom was He angry for forty years? Was it not with those who sinned, whose bodies fell in the wilderness? 
And to whom did He swear that they should not enter His rest, but to those who were disobedient? 
And [so] we see that they were not able to enter because of unbelief. 
Therefore, let us fear lest, while a promise remains of entering His rest, any one of you should seem to have come short of it. 
For indeed we have had good news preached to us, just as they also; but the word they heard did not profit them, because it was not united by faith in those who heard.