Jesus said, “For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother.”
Matthew 12:50 KJV
For whom God did foreknow, He also did predestinate to be conformed to the image of his Son, that He might be the firstborn among many brethren. For both He that sanctifieth and they who are sanctified are all of one: for which cause He is not ashamed to call them brethren.
Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.
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.
2 Corinthians 3:17-18 KJV
giving thanks unto the Father, which hath made us meet to be partakers of the inheritance of the saints in light:
who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son:
in whom we have redemption through his blood, even the forgiveness of sins:
Who is the image of the invisible God, the firstborn of every creature:
Colossians 1:12-15 KJV
and have put on the new man, which is renewed in knowledge after the image of him that created him:
Put on therefore, as the elect of God, holy and beloved, bowels of mercies, kindness, humbleness of mind, meekness, longsuffering;
forbearing one another, and forgiving one another, if any man have a quarrel against any: even as Christ forgave you, so also do ye.
And above all these things put on charity, which is the bond of perfectness.
Colossians 3:10, 12-14 KJV
God, who at sundry times and in divers manners spake in time past unto the fathers by the prophets,
hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;
who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high;
Hebrews 1:1-3 KJV
elect according to the foreknowledge of God the Father, through sanctification of the Spirit, unto obedience and sprinkling of the blood of Jesus Christ: Grace unto you, and peace, be multiplied.
1 Peter 1:2 KJV