expressed will. Law means a rule of action, directing that which is
right and prohibiting that which is wrong. The Bible contains the law of
Jehovah for the governing of mankind.

[26]The name David means beloved one. The beloved One of Jehovah is his
Son, Jesus, the Christ. David was therefore used by Jehovah to picture
or to make a type of Christ, including Jesus and his faithful followers.
David used the harp of ten strings and was an expert performer upon it.
This would seem to picture how that the antitype of David, Jesus and the
members of his body, his faithful followers, would have an understanding
of this harp of God and that God would use them to make it plain to
others who would want to understand it. The ten strings of the harp,
therefore, very fitly represent the ten great fundamental truths or
doctrines of the divine plan. These ten fundamental doctrines appear in
the order named, as follows:

(1) CREATION
(2) JUSTICE MANIFESTED
(3) ABRAHAMIC PROMISE
(4) BIRTH OF JESUS
(5) RANSOM
(6) RESURRECTION
(7) MYSTERY REVEALED
(8) THE LORD'S PRESENCE
(9) GLORIFICATION
(10) RESTORATION

[27]When one understands these ten fundamental truths and can
appreciate the beauty and harmony by them expressed, he is thereby
enabled to use the harp of God, and the use of it brings joy to his
heart and fills his soul with sweet music. Without doubt the great plan
of God pictured by the harp was all made and arranged at one time, but
we will here consider each one of these fundamental truths, represented
by a string, separately and in the order above named.

What is the harp? and when was it invented?