Ezekiel 43:16 KJV

And the altar shall be twelve cubits long, twelve broad, square in the four squares thereof.

What these words mean in the King James Bible, and where you’ll still hear them today.

Ezekiel 43:1–27After Ezekiel had surveyed the temple of God, he had a vision of the glory of God. When Christ crucified, and the things freely given to us of God, through...

Exodus 27:1 And thou shalt make an altar of shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof shall be three cubits.
Exodus 38:1–2 And he made the altar of burnt offering of shittim wood: five cubits was the length thereof, and five cubits the breadth thereof; it was foursquare; and three cubits the height thereof. …
2 Chronicles 4:1 Moreover he made an altar of brass, twenty cubits the length thereof, and twenty cubits the breadth thereof, and ten cubits the height thereof.
Ezra 3:3 And they set the altar upon his bases; for fear was upon them because of the people of those countries: and they offered burnt offerings thereon unto the LORD, even burnt offerings morning and evening.

From OpenBible.info, most relevant first.

And the altar וְהָאֲרִיאֵל wĕhāʾărîʾēl אֲרִאֵיל Noun · masculine singular · with and, the
twelve שְׁתֵּים šĕttêm שְׁנַיִם Number · feminine dual עֶשְׂרֵה ʿeśrê עָשָׂר Number · feminine singular
long אֹרֶךְ ʾōrek אֹרֶךְ Noun · masculine singular
twelve בִּשְׁתֵּים bištêm שְׁנַיִם Number · feminine dual · with preposition עֶשְׂרֵה ʿeśrê עָשָׂר Number · feminine singular
broad רֹחַב rōḥab רֹחַב Noun · masculine singular
square רָבוּעַ rābûaʿ רָבַע Verb · qal passive participle, masculine singular
in the four אֶל ʾel Preposition אַרְבַּעַת ʾarbaʿat אַרְבַּע Number · masculine singular construct
squares רְבָעָיו rĕbāʿāyw רֶבַע Noun · masculine plural construct · with suffix: third person masculine singular

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