First London Baptist Confession of Faith - 1643
33. Jesus Christ hath here on earth a manifestation of His spiritual kingdom, which is His Church, whom He hath purchased and redeemed to Himself as a peculiar inheritance; which Church is a company of visible saints, called and separated from the world by the word and Spirit of God, to the visible profession of faith of the gospel, being baptized into that faith, and joined to the Lord, and each other, by mutual agreement in the practical enjoyment of the ordinances commanded by Christ their head and king. Matthew 11:11; 2 Thessalonians 1:1; 1 Corinthians 1:2; Ephesians 1:1; Romans 1:7; Acts 19:8, 9, 26:18; 2 Corinthians 6:17; Revelation 18:4; Acts 2:37, 10:37; Romans 10:10; Matthew 18:19, 20; Acts 2:42, 9:26; 1 Peter 2:5.
35. And all His servants of all estates are to acknowledge Him to be their prophet, priest and king; and called thither to be enrolled among His household servants, to present their bodies and souls, and to bring their gifts God hath given them, to be under His heavenly conduct and government, to lead their lives in this walled sheepfold, and watered garden, to have communion here with His saints, that they may be assured that they are made meet to be partakers of their inheritance in the kingdom of God; and to supply each others wants, inward and outward; and although each person hath a propriety in his own estate, yet they are to supply each others wants, according as their necessities shall require, that the name of Jesus Christ may not be blasphemed through the necessity of any in the Church and also being come, they are here by Himself to be bestowed in their several order, due place, peculiar use, being fitly compact and knit together according to the effectual working of every part, to the edifying of itself in love. Acts 2:41, 47; Isaiah 4:3, 1 Corinthians 12:6, 7, etc.; Ezekiel 20:37, 40; Song of Solomon 4:12; Ephesians 2:19; Romans 12:4, 5, 6; Colossians 1:12, 2:5, 6, 19; Acts 20:32, 5:4, 2:44, 45, 4:34, 35; Luke 14:26; 1 Timothy 6:1; Ephesians 4:16.
We also know that freedom of conscience was found in history before the formation of the English Baptists and Locke. A quick reading of the historic Mennonite and Anabaptist confessions and writings will prove this. I haven't gone back further then Martin Luther but will try to do so when time permits.
Martin Luther:
Unless I am convinced by Scripture or by clear reasoning that I am in error for popes and councils have often erred and contradicted themselves I cannot recant, for I am subject to the Scriptures I have quoted; my conscience is captive to the Word of God. It is unsafe and dangerous to do anything against ones conscience. Here I stand, I cannot do otherwise. So help me God. Amen.
It is with the Word that we must fight, by the Word we must overthrow and destroy that which has been set up by violence. I will not make use of force against the superstitious and unbelieving
liberty is the very essence of Faith
I will preach, discuss and enlighten; but I will constrain none, for Faith is a voluntary act
I have stood up against the pope, indulgences and papists, but without violence or tumult. I put forward Gods Word; I preached and I wrote this was I all I did, the Word did all
Gods Word should be allowed to work alone
it is not in my power to fashion the hearts of men
I can get no further than the ears; the hearts I cannot reach. And since I cannot pour faith into their hearts, I cannot, nor should I, force anyone to have faith. That is Gods work alone, who causes faith to live in the heart
we should preach the Word, but results must be left solely to Gods good pleasure.
It should now be obvious that Locke was influenced by the Reformation and non-conformists and not the other way around.