"But the Lord said to Samuel, 'Do not consider his appearance or his height, for I have rejected him, The Lord does not look at the things man looks at. Man looks at the outward appearance, but the Lord looks at the heart." (1 Samuel 16:7 NIV). This Bible verse is talking about the time when the Lord anoints David as King, but Samuel was thinking it was possibly someone else the Lord would anoint.
The deep meaning of what the Lord says rings more loudly about how we should remember the way the Lord sees us. This is something I actually say often, "God looks at your heart." He cares nothing about the things the world cares about--the things the world advertises that we should need and buy to enhance ourselves to look better. It's all meaningless to Him. Although, that's one thing we do--we compare ourselves to others. Christians do it too. We compare looks, and it can be ugly. We try not to. It sets us up for an unhealthy look at ourselves and others. And it keeps our eyes on others; not on Jesus. Think of it literally. If you're looking at other people in the room with a critical eye, rather than keeping your mind and thoughts on Jesus, then your focus is in the wrong place. When you have God-esteem you don't worry or care about what people think about you. You want what God approves and learn from His disapprovals. Self-esteem is shallow and all about the 'self'. It changes the game plan completely when you have God-esteem. You are able to genuinely look at people, believers or not and love on them, see them as God sees them.