Sproul against the Gospel

So I have read the revised and expanded edition of Sproul's The Holiness of God. On pg. 204 Sproul tells us to focus on the fruit of the holy spirit. Sproul basically is telling us to look inward to ourselves for holiness. The problem is that all of this is abstract and conjured. Ultimately speaking if our holiness and sanctification is dependent on what the Spirit does in us then it is no longer Christ alone but our salvation then hinges on what we do.