In the twenty-fifth chapter of Exodus we read: "And the Lord spake unto Moses, saying: 'Speak unto the children of Israel, that they bring Me an offering: of every man that giveth it willingly with his heart ye shall take my offering. And this is the offering which ye shall take of them: gold, and silver, and brass, and blue, and purple, and scarlet, and fine linen, and goats' hair, and rams' skins dyed red, and badgers' skins, and shittim wood, oil for the light, spices for anointing oil and for sweet incense, onyx stones, and stones to be set in the ephod and in the breastplate. And let them make Me a sanctuary; that I may dwell among them. According to all that I show thee, after the pattern of the tabernacle, and the pattern of all the instruments thereof, even so shall ye make it.'" I am glad this has been recorded for our instruction. How it ought to encourage us all to believe that we may each have a part in building up the walls of the heavenly Zion. In all ages God has delighted to use the weak things. In his letter to the Corinthians Paul speaks of five things that God uses: "God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty; and base things of the world, and things which are despised, hath God chosen, yea, and things which are not, to bring to nought things that are, that no flesh should glory in His presence." You notice there are five things mentioned that God uses--foolish things, weak things, base things, despised things, and things which are not. What for? "That no flesh should glory in His presence." When we are weak then we are strong. People often think they have not strength enough; the fact is we have too much strength. It is when we feel that we have no strength of our own, that we are willing God should use us, and work through us. If we are leaning on God's strength, we have more than all the strength of the world. This world is not going to be reached by mere human intellectual power. When we realize that we have no strength, then all the fulness of God will flow in upon us. Then we shall have power with God and with man.