Faith then begins in knowledge, depends in assent, and becomes completed in trust. This is the critical element of in saving faith. Faith as trust is complete reliance on God’s promise in the gospel; it is total confidence in the mercy of God in Jesus Christ. Faith hears the word of the gospel and believes it. After Peter’s sermon at Pentecost we read ‘those who received his word were baptised (Acts 2:41).
To trust in Jesus signifies that we have all confidence in Him. It is the kind of personal commitment that gives up any kind of reliance on the self and looks totally to Christ. It is the conviction that he is totally trustworthy, that in Him and Him alone is to be found full salvation, and that one must surrender all to Him as Saviour and Lord.
Paul House wrote: ‘Clearly many “Christians” have not embraced the fact that Christians must be committed to Christ and His teachings. They may have mentally assented to certain gospel facts…joined a church…repeated a prayer…walked forward at an evangelistic meeting. But by any biblical measurement they were never converted. There was no transforming conviction of sin, no repentance, no commitment to Christ’s lordship, no love for those who love Christ.’
The Gospel proclaims Jesus Christ not only as Saviour of the world but also as Lord (Acts 16:31). To be saved means to acknowledge this Lordship and submit to the Lord personally (Romans 10:9). The act of trusting in God and in his Son through the gospel is much more then just an act of the mind. It is also an act of the affections and will.. To respond positively to Jesus means to ‘kiss him in surrender’ (Psalms 2:12), take his yoke and learn from him (Matthew 11:29) and obey Him (Hebrews 5:9).
We do not “make” Christ Lord; He is Lord! Those who will not receive Him as Lord are guilty of rejecting Him. “Faith” that rejects His sovereign authority is really unbelief.
God’s requires that we submit to Him, that we stop resisting His will, that we allow Him to have complete control of our lives. Submission requires humility because it requires that we acknowledge that God is more capable of directing our lives than we are ourselves, and it also requires that we acknowledge that God has a greater right and ability to direct our lives than we do ourselves. We are acknowledging that He is capable, trustworthy, loving, and kind. We do not need to worry about the outcome of submitting to God because He always cares for us. Submitting to God involves trusting in Him, and when we trust in Him we will not be disappointed
The question in salvation is not whether Jesus is Lord, but whether we are submissive to His lordship. (John MacArther)