Yochanan I 1:5-7

5 And this is the Besuras HaGeulah which we have heard from Him and which we proclaim to you, that Hashem is Ohr (Light), and in Him choshech there is not any at all.

6 If we make the claim that we have deveykus with Him and in the choshech walk, we speak sheker and have no halakhah in the Derech Emes.

7 But if our halakhah is in the Ohr as He is in the Ohr, we have hitkhabrut (joining, adhesion, fellowship) with one another and the dahm of Yehoshua, HaBen of Hashem, gives us tohorah (purification, cleansing) from kol chet. [YESHAYAH 2:5]