"Jesus answered and said unto her, If thou knewest the gift of God, and who it is that saith to thee, Give me to drink; thou wouldest have asked of him, and he would have given thee living water." (John 4:10)
"For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord." (Romans 6:23)
"He that spared not his own Son, but delivered him up for us all, how shall he not with him also freely give us all things?" (Romans 8:32)
"Thanks be unto God for his unspeakable gift." (2 Corinthians 9:15)
"For by grace are ye saved through faith; and that not of yourselves: it is the gift of God." (Ephesians 2:8)
"But not as the offense, so also is the free gift. For if through the offense of one many be dead, much more the grace of God, and the gift by grace, which is by one man, Jesus Christ, hath abounded unto many." (Romans 5:15)
Of course, I wouldn't expect a Judaizer/Pharisee such as yourself to accept the fact one cannot earn what is freely given.