9 The words “he says” are supplied in the translation to clarify that the following words are spoken by the Lord (see vv. 9–11).
10 The name Meribah means “strife.” Two separate but similar incidents at Meribah are recorded in the Pentateuch (Exod 17:1–7; Num 20:1–13, see also Pss 81:7; 106:32). In both cases the Israelites complained about lack of water and the Lord miraculously provided for them.
11 The name Massah means “testing.” This was another name (along with Meribah) given to the place where Israel complained following the Red Sea Crossing (see Exod 17:1–7, as well as Deut 6:16; 9:22; 33:8).
12 Heb “do not harden your heart[s] as [at] Meribah, as [in] the day of Massah in the wilderness.”
13 Heb “where your fathers tested me.”

In other versions

do not harden your hearts, as at Meribah,

as on the day at Massah in the wilderness,

when your fathers put me to the test

and put me to the proof, though they had seen my work.

“Do not harden your hearts as you did at Meribah,

as you did that day at Massah in the wilderness,

where your ancestors tested me;

they tried me, though they had seen what I did.

Do not harden your hearts as at Meribah,

as on that day at Massah in the wilderness

where your ancestors tested me;

they tried me, though they had seen what I did.

The Lord says, “Don’t harden your hearts as Israel did at Meribah,

as they did at Massah in the wilderness.

For there your ancestors tested and tried my patience,

even though they saw everything I did.

“Do not harden your heart as at Meribah,

as in the day of Massah in the wilderness,

when your ancestors tried me.

They put me to the test,

even though they had seen my work.

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.

Public Domain