Exodus 40:17

And it came to pass in the first month, in the second year, on the first day of the month, that the tabernacle was reared up.

Numbers 7:1

And it came to pass on the day that Moses had fully set up the tabernacle, and had anointed it, and sanctified it, and all its instruments, both the altar and all its vessels, and had anointed them, and sanctified them;

Exodus 40:1-2

And the LORD spoke to Moses, saying,

Numbers 9:1

And the LORD spoke to Moses in the wilderness of Sinai, in the first month of the second year after they had come out of the land of Egypt, saying,

Treasury of Scripture Knowledge

Summary

And it came to pass in the first month in the second year, on the first day of the month, that the tabernacle was reared up.

Bible References

The first month

Exodus 40:1
And the LORD spoke to Moses, saying,
Numbers 7:1
And it came to pass on the day that Moses had fully set up the tabernacle, and had anointed it, and sanctified it, and all its instruments, both the altar and all its vessels, and had anointed them, and sanctified them;
Numbers 9:1
And the LORD spoke to Moses in the wilderness of Sinai, in the first month of the second year after they had come out of the land of Egypt, saying,