Why is it important for Christians to avoid fellowship with idolaters?

The call to avoid fellowship with idolaters, as shown in Isaac's instruction to Jacob, is critical for maintaining the integrity of the gospel. Worshiping alongside those who blend grace with works undermines the essence of salvation by grace alone. Scripture urges believers not to be unequally yoked with unbelievers, highlighting the incompatibility of righteousness and unrighteousness. When Christians engage in mixed worship with idolaters, they risk diluting the gospel message, which must be wholly centered on Christ's redemptive work rather than any human effort or merit.