Sorry that is a poor understanding of John 6:29 which even calvinists rejectThats why God is Thanked for them receiving the word of Truth, because its Gods work of power that caused it 1 Thess 1:2-6
2 We give thanks to God always for you all, making mention of you in our prayers;
3 Remembering without ceasing your work of faith, and labour of love, and patience of hope in our Lord Jesus Christ, in the sight of God and our Father;
4 Knowing, brethren beloved, your election of God.
5 For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance; as ye know what manner of men we were among you for your sake.
6 And ye became followers of us, and of the Lord, having received the word in much affliction, with joy of the Holy Ghost.
Believing is the Work of God, particular God the Spirit Jn 6;29
29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.
John Calvin: “People who infer from this passage that faith is God’s gift are mistaken, for Christ does not show here what God produces in us, but what God wants and requires from us.” (The Crossway Classic Commentaries: John; Crossway Books; Wheaton, IL; 1994, p.393)
This is the work of God. This is the thing that will be acceptable to God, or which you are to do in order to be saved. Jesus did not tell them they had nothing to do, or that they were to sit down and wait, but that there was a work to perform, and that was a duty that was imperative. It was to believe on the Messiah. This is the work which sinners are to do; and doing this they will be saved, for Christ is the end of the law for righteousness to every one that believeth, Ro. 10:4.11 Albert Barnes, Notes on the New Testament: Luke & John (ed. Robert Frew; London: Blackie & Son, 1884–1885), 244.
Believe. Faith is put as a moral act or work. The work of God is to believe. Faith includes all the works which God requires. The Jews’ question contemplates numerous works. Jesus’ answer directs them to one work. Canon Westcott justly observes that “this simple formula contains the complete solution of the relation of faith and works.”11 Marvin Richardson Vincent, Word Studies in the New Testament (vol. 2; New York: Charles Scribner’s Sons, 1887), 148–149.
The meaning is not,—that faith is wrought in us by God, is the work of God; but that the truest way of working the work of God is to believe on Him whom He hath sent.11 Henry Alford, Alford’s Greek Testament: An Exegetical and Critical Commentary (vol. 1; Grand Rapids, MI: Guardian Press, 1976), 761.
28. τί ποιῶμεν …; What must we do (v. 5) that we may work? Perhaps they understood Him to mean that they must earn what they desire; certainly they see that Christ’s words have a moral meaning; they must do the works required by God. But how?
29. τὸ ἔργον. They probably thought of works of the law, tithes, sacrifices, &c. He tells them of one work, one moral act, from which all the rest derive their value, continuous belief (πιστεύητε, not πιστεύσητε) in Him whom God has sent. Comp. Acts 16:31. On ἵνα and ἀπέστειλεν see on 1:8, 33, 4:47, 17:3.1
1 A. Plummer, The Gospel according to S. John (Cambridge Greek Testament for Schools and Colleges; Cambridge: Cambridge University Press, 1896), 155.
τὰ ἔργα τοῦ θεοῦ must not be taken to mean ‘the works which God works,’ but, as in Jer. 48:10 (31:10 LXX): 1 Cor. 15:58, the works well pleasing to God.11 Henry Alford, Alford’s Greek Testament: An Exegetical and Critical Commentary (vol. 1; Grand Rapids, MI: Guardian Press, 1976), 760–761.
Context does not support that claim as shown many times