1A revelation, Yahweh’s word to Israel by Malachi.
2“I have loved you,” says Yahweh.
Yet you say, “How have you loved us?”
“Wasn’t Esau Jacob’s brother?” says Yahweh, “Yet I loved Jacob; 3but Esau I hated, and made his mountains a desolation, and gave his heritage to the jackals of the wilderness.” 4Whereas Edom says, “We are beaten down, but we will return and build the waste places,” Yahweh of Armies says, “They shall build, but I will throw down; and men will call them ‘The Wicked Land,’ even the people against whom Yahweh shows wrath forever.”
5Your eyes will see, and you will say, “Yahweh is great—even beyond the border of Israel!”
6“A son honors his father, and a servant his master. If I am a father, then where is my honor? And if I am a master, where is the respect due me?” says Yahweh of Armies to you priests who despise my name. “You say, ‘How have we despised your name?’ 7You offer polluted bread on my altar. You say, ‘How have we polluted you?’ In that you say, ‘Yahweh’s table is contemptible.’ 8When you offer the blind for sacrifice, isn’t that evil? And when you offer the lame and sick, isn’t that evil? Present it now to your governor! Will he be pleased with you? Or will he accept your person?” says Yahweh of Armies.
9“Now, please entreat the favor of God, that he may be gracious to us. With this, will he accept any of you?” says Yahweh of Armies.
10“Oh that there were one among you who would shut the doors, that you might not kindle fire on my altar in vain! I have no pleasure in you,” says Yahweh of Armies, “neither will I accept an offering at your hand. 11For from the rising of the sun even to its going down, my name is great among the nations, and in every place incense will be offered to my name, and a pure offering; for my name is great among the nations,” says Yahweh of Armies. 12“But you profane it when you say, ‘Yahweh’s table is polluted, and its fruit, even its food, is contemptible.’ 13You say also, ‘Behold, what a weariness it is!’ And you have sniffed at it”, says Yahweh of Armies; “and you have brought that which was taken by violence, the lame, and the sick; thus you bring the offering. Should I accept this at your hand?” says Yahweh.
14“But the deceiver is cursed who has in his flock a male, and vows and sacrifices to the Lord a defective thing; for I am a great King,” says Yahweh of Armies, “and my name is awesome among the nations.”
Jacob was the son of Isaac and Rebekah, born immediately after Esau, and Abraham was his grandfather. He achieved the right of the firstborn by trickery, in offering his older brother, Esau, food in exchange for the birthright, who cared little for this position. He also received the blessing of firstborn from his father Jacob before his death by cunning, and with the assistance of his mother Rebekah.
After his deception of Esau, receiving the blessing from his father, Jacob escaped to his uncle Laban, who in turn deceived Jacob into working for fourteen years for the marriage of Jacob to Leah, and then his beloved Rachel. Laban also sought to deceive Jacob of wages, but God intervened to ensure he would prosper. In a time of trial, when he feared the wrath of Esau, upon returning to the land of Canaan, Jacob had an encounter with God, and his name was changed to Israel, the one who wrestles with God. Even though his early life was characterized by deception, God worked through the situation to ensure that Jacob would be the one in the line of the patriarchs, to create a great nation and ultimately fulfill His purposes in the earth, especially through the future Messiah. The Messiah would guarantee the promise of the land to Abram and a person who would rule over Abraham's descendants, but also He would bring blessings to all the people of the earth (Gen 12:1-3).
In spite of Jacob's early failure by deception, God worked through him, and finally, Jacob became a different type of man after his struggle with God. As one has said,
"Despite Jacob’s faults, God chose him to be the leader of a great nation that still bears his name today. But for this, it is unlikely that we would know much about Jacob, who appears to be in the middle of events while the key players are those around him. There is no great wisdom or bravery in Jacob to speak of, and we are tempted to see him as little more than God’s passive instrument. If we are tempted to think that, because we aren’t in the spotlight performing great acts for God, we are unimportant to Him, then we should consider the life of Jacob and know that, in spite of our failings, God can and will still use us in His plan."
For more on Jacob, see "Who was Jacob in the Bible?", https://www.gotquestions.org/life-Jacob.html