It is a mistake not to recall by questions the last Sabbath's lesson, and to treat lessons as if they were isolated; by all means connect them. It is a great mistake for teachers to think that giving good advice or exhortation to children is as good as "breaking down" Bible truths with questions and answers. It is a mistake to suppose that many common terms, such as "Providence," "grace," repentance, justification, etc., convey any meaning to children, ordinarily. It is a mistake to attempt to purchase affection or attention by frequent gifts to children; neither by threats nor punishments. It is a great mistake of Sabbath-school teachers to suppose that their work is that of a mere philanthropist--or a moral educator, or a mere promoter of social good order, or raising up of good citizens and children. It is a mistake of teachers to expect a cold reception from parents. It is a mistake of teachers to suppose that their manner and habits are unobserved by the children. It is a mistake to avoid repetition with children--simplify and repeat. It is a mistake to teach our children, that if they will be good and read the Bible, pray and join the Church, they will thereby go to heaven. Nothing but repentance toward God and faith in the Lord Jesus Christ will secure that. It is a great mistake for Sabbath-school teachers ever to teach Bible truth without being really in _earnest_--calmly, cheerfully, seriously in _earnest_. XXXIII. HELPS FOR TEACHERS. Every thorough workman ought to have the best of tools to work with, and the teacher should be furnished with all needful helps. The _indispensable_ books for a Sabbath-school teacher are--1st. A complete reference Bible--your own Bible. 2d. A Concordance. 3d. A good Bible Dictionary. Add to these, accurate and careful observation to see in the opening flower, the falling leaf, the events of the day and the providence of God, rich and apt lessons for youthful hearts. On opening my library door I notice upon the shelves most of the following books, which, with others that are now out of print, have accumulated to meet my real wants as a Sabbath-school worker, and none of which I would be willing to part with: _Bibles._ Family Bible, with Notes and Instructions. Annotated Paragraph Bible, 2 vols. Reference Bible, with Index and Maps. _Dictionaries, Cyclopædias and Commentaries._