First Samuel 16:7b declares, “The LORD does not look at the things man looks at. Man looks at the outward appearance, but the LORD looks at the heart.” First Timothy 2:9-10 tells us, “I also want women to dress modestly, with decency and propriety, not with braided hair or gold or pearls or expensive clothes, but with good deeds, appropriate for women who profess to worship God.”
Paul did not forbid women from wearing jewelry, makeup, or braided hair—rather he tells women to not let their outward appearance become more important than their inner beauty.
Peter reminds us of this spiritual fact: “Your beauty should not come from outward adornment, such as braided hair and the wearing of gold jewelery and fine clothes. Instead, it should be that of your inner self, the unfading beauty of a gentle and quiet spirit, which is of great worth in God’s sight” (1 Peter 3:3-5). There is nothing wrong with wearing jewellery, makeup, or braided hair as long as it is done in a modest manner.
A woman should not be so focused on her outward appearance that she neglects her inner spiritual life. The Bible focuses on the heart. If a woman is spending too much time and money on her appearance, the problem is that the woman’s priorities are wrong. Expensive jewellery and clothing are the results of the problem, not the problem itself.
Women have often been deceived into thinking that beauty is about how they look or what they wear — their clothing, jewelry, or hair style. But God defines beauty very differently. In this lab, John Piper introduces a distinct, supernatural, and imperishable beauty, and explains how women can pursue it.
Peter discourages women from focusing on external beauty. (1 Peter 3:3)
Does that mean a woman should never do anything with her hair or wear any jewelry or put on clothing?
No, we know this is not absolute because women must wear clothing.
The point is to not let your focus be on your hair or jewelry or clothing, but on spiritual adornment. (1 Peter 3:3)
Anything the world can do, including hair styles, jewelry, and fashionable clothing, is no clear witness to what only God can do.
What is it that only God can do, that is, what can the world not reproduce? “A gentle and quiet spirit” (1 Peter 3:4). That beauty is distinct, supernatural, and imperishable.
That kind of beauty is precious to God, who can see the heart inside of you. (1 Peter 3:4)
some comments two men gave about their view on makeup and jewelry;
“The greater focus when it comes to thinking about physical appearance and attractiveness should not be on the external, but on the internal and spiritual (1 Pet. 3:1-5). That said, I think it is totally possible for a girl to wear makeup while not unduly craving a more attractive physical appearance.”—Trevor M.
“Inward beauty is much more important than outward beauty (1 Pet. 3:4). That being said, I like it when girls take care of themselves. I like it when girls use makeup to enhance their natural beauty. In my opinion, if a girl does her makeup right, I shouldn’t notice it. The makeup won’t be distracting. Ultimately, it’s not about the makeup. It’s about your heart. If your focus is first on pleasing Jesus, and then you want to wear makeup, then great, go wear makeup.”—Matthew
Source: Research on various avenues