True Christianity #323
323. In the heavenly meaning, testifying falsely refers to blaspheming the Lord and the Word and driving the actual truth out of the church. The Lord is truth itself, and so is the Word. On the other hand, in this sense "testifying" means speaking the truth and "testimony" means the truth itself. This is why the Ten Commandments are called the testimony (Exodus 25:16, 21-22; 31:7, 18; 32:15-16; 40:20; Leviticus 16:13; Numbers 17:4, 10). Since the Lord is truth itself, he says that he testifies concerning himself. For the Lord as the truth itself, see John 14:6; Revelation 3:7, 14; for his testifying and being a witness to himself, see John 3:11; 8:13-19; 15:26; 18:37-38.