Edify Today

12 Take care, brethren, that there not be in any one of you an evil, unbelieving heart that falls away from the living God. 13 But encourage one another day after day, as long as it is still called “Today,” so that none of you will be hardened by the deceitfulness of sin. 14 For we have become partakers of Christ, if we hold fast the beginning of our assurance firm until the end,

15 while it is said,
“Today if you hear His voice ,
Do not harden your hearts , as when they provoked Me .”
16 For who provoked Him when they had heard? Indeed, did not all those who came out of Egypt led by Moses? 17 And with whom was He angry for forty years? Was it not with those who sinned, whose bodies fell in the wilderness? 18 And to whom did He swear that they would not enter His rest, but to those who were disobedient? 19 So we see that they were not able to enter because of unbelief.
Hebrews 3:12-19

Each one of us has a responsibility to our spiritual siblings, to edify and encourage each other. It's important because in the spectrum of human emotion, our strengths and weaknesses wax and wane, but not at the same time for each of us- when one of us is weak, another is strong. The word here in v. 13 reads to "encourage one another day after day", day in and day out. We must be on our guard, conversely, not to spread discouragement, which can be contagious if we are not on guard against negativity, unbelief, and the ensuing darkness that may result. The children of Israel who were more than 20 years old that were eye witnesses to the pillar of Fire by night and pillar of cloud by day choose not to believe and obey and the Lord kept them in the desert, until they had all died off, their bones were scattered in the desert, never laying their eyes on the Promised Land.
So let's take care to never tolerate an unbelieving, evil heart. It simply has no place! God's handiwork is EVERYWHERE, and His promises are absolutely true, His Word goes out and never returns void, always accomplishing its purposes. Be a partaker, not a spectator, hold fast to these assurances to the very end- NEVER, NEVER, NEVER, GIVE UP.