But there must be no self-exaltation in the work of God. However much we know, however great our mental endowments, none of us can boast; for what we possess is but an entrusted gift, lent us on trial. The faithful improvement of these endowments decides our destiny for eternity; but we have nothing whereby we should exalt self or lift us up, for that which we have is not our own. TM 377.1
We are to be courteous toward all men, tenderhearted and sympathetic; for this was the character Christ manifested when on earth. The more closely we are united with Jesus Christ, the more tender and affectionate will be our conduct toward one another. The redemption of the human race was planned that man, fallen though he was, might be partaker of the divine nature, having escaped the corruption that is in the world through lust. If by His grace we become partakers of the divine nature, our influence upon those around us is not dangerous but beneficial. Looking unto Jesus, the Author and Finisher of our faith, we can be a blessing to all with whom we associate; for the Holy Spirit's power upon the human heart can make and keep it pure. TM 377.2
Those who do not receive Christ as their personal Saviour, who do not feel the need of His grace upon heart and character, cannot influence those around them for good. Whatever their station in life, they will carry with them an influence that Satan will use in his service. Such lose all hope of eternal life themselves, and by their wrong example lead others astray. TM 377.3