But Daniel purposed in his heart that he would not defile himself

 

"But Daniel purposed in his heart that he would not defile himself with the portion of the king's meat, nor with the wine which he drank…" - Daniel 1:8 KJV

We are in the world, but we are not of the world. (John 15:19, John 17:14-16).

"For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world." - 1 John 2:16 KJV (Galatians 5:19-21).

We have turned our back on sin, have had our sins washed away by baptism in the name of Jesus, and are filled with His Spirit, the Holy Ghost. (Acts 2:38, Acts 10:43).

"Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty." - 2 Corinthians 6:17-18 KJV

We must daily purpose in our heart that we will not defile ourselves with the things of this world.

"And the world passeth away, and the lust thereof: but he that doeth the will of God abideth for ever." - 1 John 2:17 KJV