God teaches by his word, and guides with the secret intimations of his will. David gives a word of caution to sinners. The reason for this caution is, that the way of sin will certainly end in sorrow. Here is a word of comfort to saints. They may see that a life of communion with God is far the most pleasant and comfortable. Let us rejoice, O Lord Jesus, in thee, and in thy salvation; so shall we rejoice indeed.