If you return to the Lord with all your hearts, then put away the foreign gods and the Ashtoreths from among you, and prepare your hearts for the Lord, and serve Him only. 

Little children, keep yourselves from idols. § Come out from among them and be separate, says the Lord. Do not touch what is unclean, and I will receive you.” “I will be a Father to you, and you shall be My sons and daughters, says the Lord Almighty. § You cannot serve God and mammon.You shall worship no other god, for the Lord, whose name is Jealous, is a jealous God. § Serve Him with a loyal heart and with a willing mind; for the Lord searches all hearts and understands all the intent of the thoughts.Behold, You desire truth in the inward parts, and in the hidden part You will make me to know wisdom. § For man looks at the outward appearance, but the Lord looks at the heart. § Beloved, if our heart does not condemn us, we have confidence toward God.