What is low self esteem?
 Self-degradation,  which can be a false humility.  Occupied with self .....self-hate or loathing....self pity.  Why would a person be so concerned about their low self esteem? It is because they actually love themselves, otherwise they would not care.

What is a high self esteem?

Self appraisal. Conceited. Self importance. Self love, this person is puffed up with pride. This person is selfish and is out for the gratification of self. Pride--highminded.

It would be impossible for a person to be such and still be occupied with God and others.  They are too busy with themselves.   Matt 16:24 says... "deny himself " is the way to be Christ's disciple.

No  Self-Esteem
They have no focus on Self. They are self-less in their thoughts and actions.
No self-occupation is the essence of true humility and meekness.
Their interest  is in God and others. The love of God can be shed abroad in these people.
They see their image in Christ and their worth in and through Him.
2 Cor. 3:18  But we all, with open face beholding as in a glass the glory of the Lord, are
changed into the same image from glory to glory, even as by the Spirit of the Lord.

Col 2:9,10  For in him dwelleth all the fulness of the Godhead bodily.
And ye are complete in him, which is the head of all principality and power:

John 15:12, 13  This is my commandment, That ye love one another, as I have loved you.
Greater love hath no man than this, that a man lay down his life for his friends.

1Co 1:31  That, according as it is written, He that glorieth, let him glory in the Lord.

No-Self Esteem is the Biblical image of  Christian who is ABiding in Christ