Will of God
The phrase "will of God" appears some 23 times in the New Testament and is first used by Christ in Mark 3:35 "For whosoever shall do the will of God, the same is my brother, and my sister, and mother."
Acts 13:36 For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers, and saw corruption:
Romans 1:10 Making request, if by any means now at length I might have a prosperous journey by the will of God to come unto you.
Romans 8:27 And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.
Romans 12:2 And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
Romans 15:32 That I may come unto you with joy by the will of God, and may with you be refreshed.
2 Corinthians 8:5 And this they did, not as we hoped, but first gave their own selves to the Lord, and unto us by the will of God.
Galatians 1:4 Who gave himself for our sins, that he might deliver us from this present evil world, according to the will of God and our Father:
Ephesians 1:1 Paul, an apostle of Jesus Christ by the will of God, to the saints which are at Ephesus, and to the faithful in Christ Jesus:
Ephesians 6:6 Not with eyeservice, as menpleasers; but as the servants of Christ, doing the will of God from the heart;
Colossians 1:1 Paul, an apostle of Jesus Christ by the will of God, and Timotheus our brother,
Colossians 4:12 Epaphras, who is one of you, a servant of Christ, saluteth you, always labouring fervently for you in prayers, that ye may stand perfect and complete in all the will of God.
1 Thessalonians 4:3 For this is the will of God, even your sanctification, that ye should abstain from fornication:
1 Thessalonians 5:18 In every thing give thanks: for this is the will of God in Christ Jesus concerning you.
2 Timothy 1:1 Paul, an apostle of Jesus Christ by the will of God, according to the promise of life which is in Christ Jesus,
Hebrews 10:36 For ye have need of patience, that, after ye have done the will of God, ye might receive the promise.
1 Peter 3:17 For it is better, if the will of God be so, that ye suffer for well doing, than for evil doing.
1 Peter 4:19 Wherefore let them that suffer according to the will of God commit the keeping of their souls to him in well doing, as unto a faithful Creator.
1 John 2:17 And the world passeth away, and the lust thereof: but he that doeth the will of God abideth for ever.
We also see the phrase the "will of the Lord" in Acts 21:14 "And when he would not be persuaded, we ceased, saying, The will of the Lord be done." and in Ephesians 5:17 "Wherefore be ye not unwise, but understanding what the will of the Lord is." This is just another way of expressing the idea of the "will of God" because the father and son are one.
We also see "will of my Father" in Matthew 7:21 "Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven." and in Matthew 12:50 "For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother." And of course by reason and observation anyone not doing the will of the father is not a true believer nor do they love Christ even if they say they do.
There are other verses where the idea of the will of God is clearly expressed as divinely important:
Matthew 18:14 Even so it is not the will of your Father which is in heaven, that one of these little ones should perish.
John 1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
John 4:34 Jesus saith unto them, My meat is to do the will of him that sent me, and to finish his work.
John 5:30 I can of mine own self do nothing: as I hear, I judge: and my judgment is just; because I seek not mine own will, but the will of the Father which hath sent me.
John 6:38 For I came down from heaven, not to do mine own will, but the will of him that sent me.
John 6:40 And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day.
And even in the Old Testament we see in Ezra 7:18 And whatsoever shall seem good to thee, and to thy brethren, to do with the rest of the silver and the gold, that do after the will of your God.