Strong's Concordance G1506

Original Word: εἰλικρινής
Transliteration: eilikrinḗs
Phonetic Spelling: i-lik-ree-nace'
[εἰλικρινής] from εἵλη (the sun's ray) and G2919; judged by sunlight, i.e. tested as genuine (figuratively)

Usages throughout the bible

Philippians 1:10 - That ye may approve things that are excellent; that ye may be sincere G1506 and without offence till the day of Christ;

2 Peter 3:1 - This second epistle, beloved, I now write unto you; in both which I stir up your pure G1506 minds by way of remembrance: