Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness: When your fathers tempted Me, proved Me, and saw My work. Forty years long was I grieved with this generation, and said, It is a people that do err in their heart, and they have not known My ways: Unto whom I swore in My wrath that they should not enter into My rest.@Psalm 95:6–11
Isaac Watts (1674–1748)

Isaac Watts, The Psalms of David 1719. Canaan lost through unbelief; or, a warning to delaying sinners.

Forest Amzi Chapin, 1823 (🔊 pdf nwc).

Come, let our voices join to raise
A sacred song of solemn praise;
God is a sovereign king; rehearse
His honors in exalted verse.

Come let our souls address the Lord,
Who framed our natures with His word;
He is our shepherd; we the sheep
His mercy chose, His pastures keep.

Come, let us hear His voice today,
The counsels of His love obey;
Nor let our hardened hearts renew
The sins and plagues that Israel knew.

Israel, that saw His works of grace,
Yet tempt their maker to His face;
A faithless, unbelieving brood,
That tired the patience of their God.

Thus saith the Lord: How false they prove
Forget My power, abuse My love;
Since they despise My rest, I swear,
Their feet shall never enter there.

Look back, my soul, with holy dread,
And view those ancient rebels dead;
Attend the offered grace today,
Nor lose the blessing by delay.

Seize the kind promise while it waits,
And march to Zion’s heav’nly gates:
Believe, and take the promised rest;
Obey, and be for ever blest.