The contrast between Grace and Growth clearly demonstrates two kinds of salvation, one that is instantaneously received by faith alone in Christ alone without cost, it is "absolutely free", and a salvation that requires a life time of hard work, service, commitment, and obedience to Christ, which is very costly. A salvation that is free, but costs you everything is ridiculous nonsense.
There cannot possible be a salvation that is both free and costly, better known as "Costly Grace". That is a contradiction in terms. The often quoted statement that, "Salvation is by faith alone, but is not a faith that is alone" is a oxymoron, nothing less than "double speak". It is far better to say,"There is a salvation that is by faith alone, and a salvation that is not by faith alone". These salvations are both desirable and obtainable, but by different means which is clearly seen. As Dr. C. Norman Sellers said, "There is a salvation by faith, and there is a salvation by works, but there is no such thing as a salvation by faith and works".
If you are discovering this truth for the first time, we invite you to receive the free gift of eternal life by faith alone in Jesus Christ our Savior and LORD. Then, commit yourself to abiding in His word, becoming a disciple of Christ, to receive the many addition benefits or rewards of costly growth, such as praise, honor, and glory which Christ greatly desires to give to those who persevere in the faith, hope and love for God.