Genesis 4:4

Abel also brought some of the firstborn of his flock and of its fat. Yahweh respected Abel and his offering,

Hebrews 11:4

By faith, Abel offered to God a more excellent sacrifice than Cain, through which he had testimony given to him that he was righteous, God testifying with respect to his gifts; and through it he, being dead, still speaks.

Exodus 13:12

that you shall set apart to Yahweh all that opens the womb, and every firstborn which you have that comes from an animal. The males shall be Yahweh's.

Numbers 18:17

"But you shall not redeem the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat. They are holy. You shall sprinkle their blood on the altar, and shall burn their fat for an offering made by fire, for a pleasant aroma to Yahweh.

Proverbs 3:9

Honor Yahweh with your substance, with the first fruits of all your increase:

Genesis 15:17

It came to pass that, when the sun went down, and it was dark, behold, a smoking furnace, and a flaming torch passed between these pieces.

Leviticus 3:16-17

The priest shall burn them on the altar: it is the food of the offering made by fire, for a pleasant aroma; all the fat is Yahweh's.

Leviticus 9:24

There came forth fire from before Yahweh, and consumed the burnt offering and the fat upon the altar: and when all the people saw it, they shouted, and fell on their faces.

Numbers 16:35

Fire came forth from Yahweh, and devoured the two hundred fifty men who offered the incense.

Numbers 18:12

"All the best of the oil, and all the best of the vintage, and of the grain, the first fruits of them which they give to Yahweh, to you have I given them.

Judges 6:21

Then the angel of Yahweh stretched out the end of the staff that was in his hand, and touched the meat and the unleavened cakes; and fire went up out of the rock, and consumed the meat and the unleavened cakes; and the angel of Yahweh departed out of his sight.

1 Kings 18:24

You call on the name of your god, and I will call on the name of Yahweh. The God who answers by fire, let him be God." All the people answered, "It is well said."

1 Kings 18:38

Then the fire of Yahweh fell, and consumed the burnt offering, and the wood, and the stones, and the dust, and licked up the water that was in the trench.

1 Chronicles 21:26

David built an altar to Yahweh there, and offered burnt offerings and peace offerings, and called on Yahweh; and he answered him from the sky by fire on the altar of burnt offering.

2 Chronicles 7:1

Now when Solomon had made an end of praying, the fire came down from heaven, and consumed the burnt offering and the sacrifices; and the glory of Yahweh filled the house.

Psalm 20:3

remember all your offerings, and accept your burnt sacrifice. Selah.

Hebrews 9:22

According to the law, nearly everything is cleansed with blood, and apart from shedding of blood there is no remission.

1 Peter 1:19-20

but with precious blood, as of a faultless and pure lamb, the blood of Christ;

Revelation 13:8

All who dwell on the earth will worship him, everyone whose name has not been written from the foundation of the world in the book of life of the Lamb who has been killed.

Treasury of Scripture Knowledge

Summary

And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the LORD had respect unto Abel and to his offering:

Bible References

The firstlings

Exodus 13:12
that you shall set apart to Yahweh all that opens the womb, and every firstborn which you have that comes from an animal. The males shall be Yahweh's.
Numbers 18:12
"All the best of the oil, and all the best of the vintage, and of the grain, the first fruits of them which they give to Yahweh, to you have I given them.
Proverbs 3:9
Honor Yahweh with your substance, with the first fruits of all your increase:
Hebrews 9:22
According to the law, nearly everything is cleansed with blood, and apart from shedding of blood there is no remission.
1 Peter 1:19
but with precious blood, as of a faultless and pure lamb, the blood of Christ;
Revelation 13:8
All who dwell on the earth will worship him, everyone whose name has not been written from the foundation of the world in the book of life of the Lamb who has been killed.

Fat

Leviticus 3:16
The priest shall burn them on the altar: it is the food of the offering made by fire, for a pleasant aroma; all the fat is Yahweh's.

Had

Genesis 15:17
It came to pass that, when the sun went down, and it was dark, behold, a smoking furnace, and a flaming torch passed between these pieces.
Leviticus 9:24
There came forth fire from before Yahweh, and consumed the burnt offering and the fat upon the altar: and when all the people saw it, they shouted, and fell on their faces.
Numbers 16:35
Fire came forth from Yahweh, and devoured the two hundred fifty men who offered the incense.
Judges 6:21
Then the angel of Yahweh stretched out the end of the staff that was in his hand, and touched the meat and the unleavened cakes; and fire went up out of the rock, and consumed the meat and the unleavened cakes; and the angel of Yahweh departed out of his sight.
1 Kings 18:24
You call on the name of your god, and I will call on the name of Yahweh. The God who answers by fire, let him be God." All the people answered, "It is well said."
1 Chronicles 21:26
David built an altar to Yahweh there, and offered burnt offerings and peace offerings, and called on Yahweh; and he answered him from the sky by fire on the altar of burnt offering.
2 Chronicles 7:1
Now when Solomon had made an end of praying, the fire came down from heaven, and consumed the burnt offering and the sacrifices; and the glory of Yahweh filled the house.
Psalm 20:3
remember all your offerings, and accept your burnt sacrifice. Selah.