Building an altar
The practice of building altars at places where a god does something important. Often these altars were erected to commemorate such an event with sacrificing.
Key passages
Ge 8:20

And Noah built an altar to Yahweh, and he took from all the clean animals and from all the clean birds, and offered burnt offerings on the altar.

Ge 12:7

And Yahweh appeared to Abram and said, “To your offspring I will give this land.” And he built an altar there to Yahweh, who had appeared to him.

1 Mac 4:47–53

And they took unhewn stones according to the law and built a new altar just like the previous one. And they rebuilt the holy place and the inside of the temple and sanctified the courtyards. And they made new holy vessels and brought the lampstand and the altar of whole burnt offerings and of …

2 Mac 10:3

And they purified the temple; they made another altar and, upon striking a fire with flint stones and taking some fire from these embers, they offered up sacrifices and incense and lit the lamps, and they set out the shewbread after a span of two years.

1 Esd 5:48–50

And, having taken their places, Joshua, the son of Jozadak, and his brothers the priests and Zerubbabel, the son of Shealtiel, and his kindred prepared the altar of the God of Israel, to offer upon it burnt offerings in accordance with what is directed in the book of Moses, the man of God. …