For who maketh thee to differ from another? and what hast thou that thou didst not receive? now if thou didst receive it, why dost thou glory, as if thou hadst not received it? – 1 Corinthians 4:7
Pride grows apace like other ill weeds. It will live on any soil. In the natural heart it flourishes, springing up without sowing, and growing without watering; and even in the renewed heart it all too readily takes root when Satan casts abroad a handful of its seed. Of all creatures in the world the Christian is the last man who ought to be proud; and yet, alas, we have had mournful evidence both in past history and in our own observation, and worst of all in our own personal experience, that Christian men may become lifted up, to their own shame.
…pride is always inconsistent with the true doctrine of the gospel. You may use this test concerning any preaching or teaching that you meet with: if it legitimately and logically leads a man to boast of himself, it is not true. Our chemists use litmus to discover the presence of acid in any liquid submitted to them, for the paper then takes a reddish tint; and you may use this as your test, that when a doctrine makes you red with pride it contains the acid of falsehood… If with a sleek hand it brushes your feathers the right way, and makes you feel “What a fine fellow I am,” you ought at once to flee from it. The very fact that it flatters you should be to you like a fog horn to warn you of danger. Say to every doctrine which fosters pride, “Get thee behind me, Satan, for thou savourest not the things that be of God and of truth, or thou wouldst not speak so well of me.” ~ C.H. Spurgeon