Why did God reject Eli's sons?

Eli’s sons, Hophni and Phinehas, were condemned for their abominable actions which demonstrated a flagrant disregard for God's law and holiness as outlined in 1 Samuel 2:12-17. Their self-serving practices, including robbing the people of their rightful sacrifices and having no fear of God, exemplified a life marked by sin and rebellion. God’s rejection of them serves as a solemn warning about the consequences of persistent sin, as reflected in Hebrews 10:26-31. Their actions rendered them unfit for priestly service, leading God to declare that He would judge them definitively. This signals that God will not tolerate unrepentant sin among His people, highlighting His justice and holiness.