To a certain degree, both you and your boss are correct in what you are saying.  As far as salvation, it is all about Calvary.  Let’s read Matthew 27:33-36, “And when they were come unto a place called Golgotha, that is to say, a place of a skull, They gave him vinegar to drink mingled with gall: and when he had tasted thereof, he would not drink. And they crucified him, and parted his garments, casting lots: that it might be fulfilled which was spoken by the prophet, They parted my garments among them, and upon my vesture did they cast lots. And sitting down they watched him there.”  The crucifixion of the Lord Jesus Christ on the cross of Calvary is the ONLY payment that God will accept as the payment of our sin debt.  We read in John 14:6, “Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.”  There is no way to come to God the Father, except through faith in the Lord Jesus Christ.  It is His sacrifice of Himself that has satisfied God’s righteous demand for an offering to remove all our sins.  We read in Hebrews 10:10, “By the which will we are sanctified through the offering of the body of Jesus Christ once for all.”

Now, what about going to church?  First let me point out that the Greek word for church is found over 150 times in the New Testament.  Not once is it in reference to a building.  We read in Acts 2:47, “And the Lord added to the church daily those who were being saved.” (NKJV)  The church is not an organization.  It is an organism.  We learn in Ephesians 1:22-23, “And hath put all things under his feet, and gave him to be the head over all things to the church, Which is his body, the fulness of him that filleth all in all.”  The church is the body of Christ.  It’s clear from the Word that there are ‘local aspects’ of the church, but only one true church.  So, in reality, we cannot ‘go to church’, but as part of the church we can meet with other believers for worship, the proclamation of the Gospel, and the ministry of the Word.  Let’s consider the truth and language of Hebrews 10:24-25, “And let us consider one another to provoke unto love and to good works: Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.”  It is so important that the Lord’s people gather often with each other.  We should not ‘forsake’ the opportunity to gather with and fellowship with fellow believers.  We need our brothers and sisters in Christ.  Our brothers and sister need us, too.

As I said at the outset, both you and your boss are right.  Salvation is completely dependent on our faith in the Lord Jesus Christ.  Each person comes to the Lord as individuals in repentance of their sins, and acceptance of the Lord Jesus as their savior.  Having been saved, we should to seek out fellow believers who are following the Lord, living Godly lives, and seeking to minister to others.  We learn in 2 Timothy 2:22 that we should, “…follow righteousness, faith, charity, peace, with them that call on the Lord out of a pure heart.”

Once we put our faith in the Lord Jesus Christ, we become members of the church.  As such, we become brothers and sisters to every saved person in the world, no matter where they are.  We certainly need the Lord Jesus in every facet of our lives.  We also need our ‘family members’ to help us, and we can help them, also.  (197.4)