Exodus 38:1
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.
Cross-reference
Exodus 27:1-8 contains the detailed instructions for the altar — this verse records the actual construction following those specs.
Exodus 40:6 describes placing the altar at the tabernacle entrance — this altar is the one being positioned.
Exodus 40:29 shows this altar in use — burnt offerings are offered on it after its placement.
Exodus 31:9 lists the altar of burnt offering among the tabernacle items commanded — this verse records its actual construction, fulfilling that command.
Exodus 35:16 lists the altar of burnt offering in the tabernacle inventory — the same altar whose construction is detailed here.
2 Chronicles 1:5 mentions the bronze altar made by Bezalel—the same altar described here—being at Gibeon for Solomon's early worship.
Ezekiel 43:16 gives dimensions for the altar in the future temple, a parallel construction to this altar though with different specifications.
Leviticus 1:3 specifies that the burnt offering is brought to the door of the tabernacle—the very altar described here is where that offering is presented.
Numbers 3:31 lists the altar of burnt offering among the items assigned to the Kohathites for transport, directly referencing this same altar.
Numbers 4:14 gives instructions for covering the altar of burnt offering during travel, which is the altar built here in Exodus 38:1.
Ezekiel 43:13-17 gives dimensions for the millennial temple altar — similar in function to this Mosaic altar but later and larger.
2 Chronicles 4:1 describes Solomon's temple altar — much larger but serving the same purpose as this wilderness altar.