James 1:4 (NIV)
4Perseverance must finish its work so that you may be mature and complete, not lacking anything.
Philippians 1:6 (ESV)
And I am sure of this, that he who began a good work in you will bring it to completion at the day of Jesus Christ.
Proverbs 2:6 (NIV)
6For the Lord gives wisdom, and from his mouth come knowledge and understanding.