Matthew 6:16-24

Let us learn from our Lord's instruction about fasting, the great importance of cheerfulness in our religion.
Let us learn from our Lord's caution about worldliness what immense need we all have to watch and pray against an earthly spirit.
Let us learn from our Lord's words about the "single eye," the true secret of the failures, which so many Christians seem to make in their religion.

"Never let us forget that there is no religion in looking melancholy and gloomy. Are we dissatisfied with Christ's wages, and Christ's service? Surely not! Then let us not look as if we were."

"Oh! let us all beware that we do not sink into hell by paying excessive attention to lawful things. Open transgression of God's law slays its thousands, but worldliness its tens of thousands."

"Let us be decided, thorough-going, uncompromising followers of Christ. Let our motto be that of Paul, "One thing I do." (Phil. 3:13.) Then we shall be happy Christians."

Questions:

These verses highlight the topics of fasting, worldliness, and singleness of purpose. In considering fasting, Ryle says that there is no command in the NT which seems to leave it upon to each person to be firmly convinced in their own mind and not to hastily condemn others. As for its purpose, Ryle declares that it is the "occasional abstinence from food in order to bring the body into subjection to the spirit." That said, have we ever considered it? If not, why not? If you have, did it help you and how?
The second consideration is of worldliness, which is to find our happiness in this world that is passing away. The first question we need to consider is whether we are aware that worldliness is, as Ryle says, "a treacherous, harmful, enticing and powerful enemy" that is a rock that makes shipwreck for many for all eternity? Is this surprising to you? Are our affections on the things of earth or the things of heaven?
The last consideration is on singleness of purpose, which Ryle calls the one great secret of spiritual prosperity. The opposite is trying to serve Christ and the world together, which is something Jesus says cannot be done. And so, when we try, it creates Christians who are uncomfortable, uneasy, and dissatisfied with themselves. Is this you? Are you trying to be a servant of Christ and of the world?