We know that darkness and light can never coexist. God’s word confirms that when darkness was having its way in the beginning God called forth the light and darkness could not comprehend it (John 1:5). In the same light, grace (light) and sin (darkness) cannot coexist

Sin is bondage while Grace is freedom. How then would anyone have a combination of both? It is because you have not known the truth, once you know th truth, you will be free (John 8:32).