Exodus 25:10 New English Translation

¹⁰^[a] “They are to make an ark^[b] of acacia wood—its length is to be 45 inches, its width 27 inches, and its height 27 inches.^[c]

Exodus 25:10 sn This section begins with the ark, the most sacred and important object of Israel’s worship. Verses 10-15 provide the instructions for it, v. 16 has the placement of the Law in it, vv. 17-21 cover the mercy lid, and v. 22 the meeting above it. The point of this item in the tabernacle is to underscore the focus: the covenant people must always have God’s holy standard before them as they draw near to worship. A study of this would focus on God’s nature (he is a God of order, precision, and perfection), on the usefulness of this item for worship, and on the typology intended.
Exodus 25:10 tn The word “ark” has long been used by English translations to render אָרוֹן (ʾaron), the word used for the wooden “box,” or “chest,” made by Noah in which to escape the flood and by the Israelites to furnish the tabernacle.
Exodus 25:10 tn The size is two and a half cubits long, a cubit and a half wide, and a cubit and a half high. The size is estimated on the assumption that the cubit is 18 inches (see S. R. Driver, Exodus, 267).

New English Translation (NET)