1 Kings 9:25

And Solomon used to offer, three times a year, ascending-sacrifices and peace-offerings, upon the altar which he had built unto Yahweh, and to offer incense at the altar which was before Yahweh, - thus Solomon gave completeness unto the house.

Exodus 23:14-17

Three times, shalt thou keep festival to me, in the year.

Deuteronomy 16:16

Three times in the year, shall each one of thy males see the face of Yahweh thy God, in the place which he shall choose, at the festival of unleavened cakes and at the festival of weeks and at the festival of booths, - and none shall see the face of Yahweh empty-handed:

2 Chronicles 8:12-13

Then, Solomon offered up ascending-sacrifices, unto Yahweh, - upon the altar of Yahweh, which he had built before the porch:

2 Chronicles 8:16

So all the work of Solomon was prepared, from the day of founding the house of Yahweh, even as far as the finishing thereof, - complete was the house of Yahweh.

Exodus 30:7

And Aaron shall burn thereon fragrant incense, - morning by morning, when he trimmeth the lamps, shall he burn it;

Exodus 34:23

three times in the year, shall every one of thy males see the face of the Lord Yahweh the God of Israel.

1 Kings 6:38

and, in the eleventh year, in the month Bul - the same, is the eighth month, was the house finished, as to all the particulars thereof, and as to all the appointments thereof, - so then he built it in seven years.

1 Chronicles 23:13

The sons of Amram, Aaron and Moses, - and Aaron was separated, to hallow the holy of holies, he and his sons, unto times age-abiding, to make a perfume before Yahweh, to be in attendance upon him, and to bless in his name, unto times age-abiding;

2 Chronicles 26:16-21

But, when he became strong, uplifted was his heart, unto ruin, for he acted unfaithfully against Yahweh his God, - and entered into the temple of Yahweh, to burn incense upon the altar of incense.

2 Chronicles 29:11

My sons! now, do not be faulty, - for, of you, hath Yahweh made choice, to stand before him, and to wait upon him, and to be his attendants and burners of incense.

2 Chronicles 34:25

Because they have forsaken me, and burned incense unto other gods, so as to provoke me to anger, with all the works of their hands, therefore hath my wrath been poured out upon this place, and shall not be quenched.

Treasury of Scripture Knowledge

Summary

And three times in a year did Solomon offer burnt offerings and peace offerings upon the altar which he built unto the LORD, and he burnt incense upon the altar that was before the LORD. So he finished the house.

Upon the altar that was before

Bible References

Three times

Exodus 23:14
Three times, shalt thou keep festival to me, in the year.
Exodus 34:23
three times in the year, shall every one of thy males see the face of the Lord Yahweh the God of Israel.
Deuteronomy 16:16
Three times in the year, shall each one of thy males see the face of Yahweh thy God, in the place which he shall choose, at the festival of unleavened cakes and at the festival of weeks and at the festival of booths, - and none shall see the face of Yahweh empty-handed:
2 Chronicles 8:12
Then, Solomon offered up ascending-sacrifices, unto Yahweh, - upon the altar of Yahweh, which he had built before the porch:

He burnt

Exodus 30:7
And Aaron shall burn thereon fragrant incense, - morning by morning, when he trimmeth the lamps, shall he burn it;
1 Chronicles 23:13
The sons of Amram, Aaron and Moses, - and Aaron was separated, to hallow the holy of holies, he and his sons, unto times age-abiding, to make a perfume before Yahweh, to be in attendance upon him, and to bless in his name, unto times age-abiding;
2 Chronicles 26:16
But, when he became strong, uplifted was his heart, unto ruin, for he acted unfaithfully against Yahweh his God, - and entered into the temple of Yahweh, to burn incense upon the altar of incense.
2 Chronicles 29:11
My sons! now, do not be faulty, - for, of you, hath Yahweh made choice, to stand before him, and to wait upon him, and to be his attendants and burners of incense.
2 Chronicles 34:25
Because they have forsaken me, and burned incense unto other gods, so as to provoke me to anger, with all the works of their hands, therefore hath my wrath been poured out upon this place, and shall not be quenched.

Upon the altar that was before

1 Kings 6:38
and, in the eleventh year, in the month Bul - the same, is the eighth month, was the house finished, as to all the particulars thereof, and as to all the appointments thereof, - so then he built it in seven years.
2 Chronicles 8:16
So all the work of Solomon was prepared, from the day of founding the house of Yahweh, even as far as the finishing thereof, - complete was the house of Yahweh.