5 Heb “you covered it.” The masculine suffix is problematic if the grammatically feminine noun “earth” is the antecedent. For this reason some emend the form to a feminine verb with feminine suffix, כִּסַּתָּה (kisattah, “[the watery deep] covered it [i.e., the earth]”), a reading assumed by the present translation.
6 Heb “stood.”
7 Verse 6 refers to the condition described in Gen 1:2 (note the use of the Hebrew term תְּהוֹם [téhom, “watery deep”] in both texts).
8 Heb “from your shout they fled, from the sound of your thunder they hurried off.” Verses 7–8 poetically depict Gen 1:9–10.
9 Heb “a boundary you set up, they will not cross, they will not return to cover the earth.”

In other versions

ESVEnglish Standard Version

He set the earth on its foundations,

so that it should never be moved.

You covered it with the deep as with a garment;

the waters stood above the mountains.

At your rebuke they fled;

at the sound of your thunder they took to flight.

The mountains rose, the valleys sank down

to the place that you appointed for them.

You set a boundary that they may not pass,

so that they might not again cover the earth.

NIVNew International Version (2011)

He set the earth on its foundations;

it can never be moved.

You covered it with the watery depths as with a garment;

the waters stood above the mountains.

But at your rebuke the waters fled,

at the sound of your thunder they took to flight;

they flowed over the mountains,

they went down into the valleys,

to the place you assigned for them.

You set a boundary they cannot cross;

never again will they cover the earth.

CSBChristian Standard Bible

He established the earth on its foundations;

it will never be shaken.

You covered it with the deep

as if it were a garment;

the water stood above the mountains.

At your rebuke the water fled;

at the sound of your thunder they hurried away—

mountains rose and valleys sank—

to the place you established for them.

You set a boundary they cannot cross;

they will never cover the earth again.

NLTNew Living Translation

You placed the world on its foundation

so it would never be moved.

You clothed the earth with floods of water,

water that covered even the mountains.

At your command, the water fled;

at the sound of your thunder, it hurried away.

Mountains rose and valleys sank

to the levels you decreed.

Then you set a firm boundary for the seas,

so they would never again cover the earth.

LEBThe Lexham English Bible

He established the earth on her foundations,

so that it will not be moved forever and ever.

You covered it with the deep as with a garment.

The waters stood above the mountains.

At your rebuke they fled;

at the sound of your thunder they ran off.

They ascended the mountains and drained through the valleys

to the place that you established for them.

You set a boundary that they may not cross over,

so that they would not return to cover the earth.

KJV 1900King James Version

Who laid the foundations of the earth,

That it should not be removed for ever.

Thou coveredst it with the deep as with a garment:

The waters stood above the mountains.

At thy rebuke they fled;

At the voice of thy thunder they hasted away.

They go up by the mountains; they go down by the valleys

Unto the place which thou hast founded for them.

Thou hast set a bound that they may not pass over;

That they turn not again to cover the earth.

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