Ye cannot serve the Lord] To wit, if ye retain your idols among you, or mingle false worship with the true, as vers. 23. And this he speaketh not to deterre them, but to make them suspect themselves as being very prone to idolatry, and to draw them up to make a more firm covenant of serving God with so much the stronger resolution.
an holy God] And therefore abhorres impiety and idolatry.
a jealous God] And therefore cannot endure any corrivals in his worship.