Did You Receive the Holy Spirit when You BeLieved? －The Holy Spirit Who Works for the Salvation of Souls－ This booklet is written for those Christians who whish to know the reason why so many though professing faith in Christ but are not walking as they should do as the Bible teaches. At the same time, there are some Bible teachers who deny salvation by faith and by grace, claiming that it is the source of producing so many loose professors without reality of faith in Christ. Is that claim right? What does the Bible teach on this crucial matter? This booklet is sure to help those Christians see to understand it from the point of the works of the Holy Spirit for the salvation of souls.