That we should be saved from our enemies, and from the hand of all that hate us;
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Cyril of Alexandria
AD 444
No one should swear just because God swore to Abraham. For just as God’s anger is not anger, nor does anger imply passion but signifies power exercised in punishment or some similar motion. So neither is an oath an act of swearing. For God does not swear but indicates the certainty of the event—so that which he says will necessarily come to pass. For God’s oath is his own word, fully persuading those that hear and giving each one the conviction that what he has promised and said will certainly come to pass. .