Revelation, February 1831–B [D&C 44]

you that ye must visit the poor & the needy &  administer to their releaf that they may be kept untill  all things may be done according to my law which  ye have receivd amen [p. 71]
In response to a revelation directing church members to move to Ohio, Joseph and Emma Smith arrived in Kirtland, Ohio, in early February 1831. Within days, a revelation counseled JS and a dozen elders, setting forth the laws that were to govern the church (Revelation, 9 February 1831 [D&C 42:1–72]). That revelation required the elders to go two-by-two to preach and to build up the church.
This revelation urged those elders to congregate in Kirtland as soon as possible, directing that they be called together “by letter or some other way,” and promising that the Holy Spirit would be present in their assembly, empowering them to bring many into the church.
John Whitmer copied this text into Revelation Book 1, where it is designated “46th Commandment Febry 1831,” sometime between March and June 1831. The 1833 Book of Commandments dates this revelation to February 1831 at Kirtland, Ohio. The 1835 Doctrine and Covenants gives the same date but no location.