Note 3 at Joh 10:30: Jesus had already received a violent response from the scribes and Pharisees when He called God His Father (Joh 5:17-18). They took that as Jesus claiming deity for Himself (see note 3 at Joh 5:18). Here, He not only called God His Father again but also said that He and His Father are one. As stated in note 2 at Mr 1:10 and note 2 at Joh 8:18, this word "one" means more than singleness of purpose. It denotes "a single (one), to the exclusion of others" (Vine's Expository Dictionary).