Deuteronomy 11:22

"Ye shall diligently keep the commandments of the LORD your God, and his testimonies, and his statutes, which he hath commanded thee."

"And it shall come to pass, if ye shall hearken diligently unto my commandments which I command you this day, to love the LORD your God, and to serve him with all your heart and with all your soul,"

"Thou shalt fear the LORD thy God; him shalt thou serve, and to him shalt thou cleave, and swear by his name."

"Who, when he came, and had seen the grace of God, was glad, and exhorted them all, that with purpose of heart they would cleave unto the Lord."

"That thou mayest love the LORD thy God, and that thou mayest obey his voice, and that thou mayest cleave unto him: for he is thy life, and the length of thy days: that thou mayest dwell in the land which the LORD sware unto thy fathers, to Abraham, to Isaac, and to Jacob, to give them."

"Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh."

"Henceforth there is laid up for me a crown of righteousness, which the Lord, the righteous judge, shall give me at that day: and not to me only, but unto all them also that love his appearing."

"This is the first and great commandment."