Hebrews 3:13

11 So I swore on oath in My anger, ‘They shall never enter My rest.’”

12 See to it, brothers, that none of you has a wicked heart of unbelief that turns away from the living God.

But exhort one another daily, as long as it is called today, so that none of you may be hardened by sin’s deceitfulness.

14 We have come to share in Christ if we hold firmly to the end the assurance we had at first.

15 As it has been said: “Today, if you hear His voice, do not harden your hearts, as you did in the rebellion.”

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
But exhort one another daily, as long as it is called today, so that none of you may be hardened by sin’s deceitfulness.
KJV
But exhort one another daily, while it is called To day; lest any of you be hardened through the deceitfulness of sin.
WEB
but exhort one another day by day, so long as it is called “today”, lest any one of you be hardened by the deceitfulness of sin.
ASV
but exhort one another day by day, so long as it is called To-day; lest any one of you be hardened by the deceitfulness of sin:
DARBY
But encourage yourselves each day, as long as it is called To-day, that none of you be hardened by the deceitfulness of sin.
BLB
But encourage one another each day, as long as it is called today, so that not any of you⁺ may be hardened by the deceitfulness of sin.
ÅB
men forman hverandre hver dag, så lenge det heter idag, for at ikke noen av dere skal forherdes ved syndens svik;
OTB
Men oppmuntre hverandre daglig, så lenge det heter “I dag,” slik at ingen av dere blir forherdet av syndens bedrag.
B1930
men forman hverandre hver dag, så lenge det heter idag, forat ikke nogen av eder skal forherdes ved syndens svik;

Study notes (Tyndale)

Original text and word study

Cross references