The salutations given by one saint to another are to be given through prayer having both the word of God and the will of God in mind.
Paul’s salutation was so important to him that although he did not personally pen most of his epistles, he personally penned his salutation.
Though the Bible refers to the elder in various contexts, today’s passage refers to the elder as simply an older gentleman. The elder here is contrasted first with the younger men while the next verse contrasts it with the elder women. The issue at hand is one of respect. It is important to note that the scripture does not imply or teach that believers can never question the actions of an older man. However, it does indicate the method of this questioning. An elder is not to be rebuked but intreated “as a father.” To intreat a person is to plead with or earnestly ask them. Intreating reflects approaching him with respect which is the method by which the Lord demands an elder be approached.