Genesis 31:1
And he heard the words of Laban’s sons, saying, Jacob hath taken away all that was our father’s; and of that which was our father’s hath he gotten all this glory.
Cross-reference
In 31:8, Jacob explains how Laban's flocks bore young matching Jacob's wages — God redirected the livestock to him, answering the sons' accusations in 31:1.
In 31:9, Jacob says God took the livestock and gave them to him — directly addressing and countering the accusations the sons made in 31:1.
In Genesis 32:5, Jacob uses the same word — he 'acquired' oxen, donkeys, and flocks — summarizing to Esau the very wealth Laban's sons resent here.
Proverbs 14:30 says envy rots the bones. The sons' accusations in 31:1 are driven by jealousy over Jacob's growing wealth from their father's flocks.
Proverbs 27:4 warns jealousy is unendurable. The sons of Laban's hostility in 31:1 stems from envy over Jacob's prosperity.
Ecclesiastes 4:4 says all labor is driven by envy of a neighbor. Laban's sons saw Jacob's success and resented it, fueling their accusations.