1Thus the Lord Yahweh showed me: behold, he formed locusts in the beginning of the shooting up of the latter growth; and behold, it was the latter growth after the king’s harvest. 2When they finished eating the grass of the land, then I said, “Lord Yahweh, forgive, I beg you! How could Jacob stand? For he is small.”
3Yahweh relented concerning this. “It shall not be,” says Yahweh.
4Thus the Lord Yahweh showed me: behold, the Lord Yahweh called for judgment by fire; and it dried up the great deep, and would have devoured the land. 5Then I said, “Lord Yahweh, stop, I beg you! How could Jacob stand? For he is small.”
6Yahweh relented concerning this. “This also shall not be,” says the Lord Yahweh.
7Thus he showed me: behold, the Lord stood beside a wall made by a plumb line, with a plumb line in his hand. 8Yahweh said to me, “Amos, what do you see?”
I said, “A plumb line.”
Then the Lord said, “Behold, I will set a plumb line in the middle of my people Israel. I will not again pass by them any more. 9The high places of Isaac will be desolate, the sanctuaries of Israel will be laid waste; and I will rise against the house of Jeroboam with the sword.”
10Then Amaziah the priest of Bethel sent to Jeroboam king of Israel, saying, “Amos has conspired against you in the middle of the house of Israel. The land is not able to bear all his words. 11For Amos says, ‘Jeroboam will die by the sword, and Israel shall surely be led away captive out of his land.’”
12Amaziah also said to Amos, “You seer, go, flee away into the land of Judah, and there eat bread, and prophesy there, 13but don’t prophesy again any more at Bethel; for it is the king’s sanctuary, and it is a royal house!”
14Then Amos answered Amaziah, “I was no prophet, neither was I a prophet’s son, but I was a herdsman, and a farmer of sycamore figs; 15and Yahweh took me from following the flock, and Yahweh said to me, ‘Go, prophesy to my people Israel.’ 16Now therefore listen to Yahweh’s word: ‘You say, Don’t prophesy against Israel, and don’t preach against the house of Isaac.’ 17Therefore Yahweh says: ‘Your wife shall be a prostitute in the city, and your sons and your daughters shall fall by the sword, and your land shall be divided by line; and you yourself shall die in a land that is unclean, and Israel shall surely be led away captive out of his land.’”
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