“When our Lord in his high priestly prayer says, ‘This is life eternal, that they may know thee the only true God and Jesus Christ, whom thou has sent’ (John 17:3), he is predicating of the Father the most ultimate and absolute in respect of deity that biblical language provides. . . . When we speak, therefore, of the sanctity of truth, we must recognize that underlies this concept is the sanctity of the being of God as the living and true God. He is the God of truth and all truth derives its sanctity from him.” “It is because untruth is the contradiction of the nature of God that it is wrong. Truth and untruth are antithetical because God is truth.” (John Murray, Principles of Conduct, pp. 124–125, 148).
“[A] fundamentally false approach to the divine law is in view and is being condemned, an approach which, through externalistic and casuistic interpretation of isolated passages resulted in the justification of frivolous oaths, oaths by heaven and earth, by Jerusalem, by one’s head, or the like. Jesus condemns such vain efforts to avoid a reckoning with God in all of one’s asservations, whether in the form of oaths or not, by the declaration that they were not to swear at all.” (Ned B. Stonehouse, The Witness of Matthew and Mark to Christ, p. 207).
“God is awesome. Before him, all the empty words and false assurances of empty religion will melt away. Ananias and Sapphira discovered that to be the case when they promised God God one thing and then did another.” (Gordon Keddie, Ecclesiastes, p. 133).
Quotes from the Reflection for Trinity Presbyterian Church.