Isa 7:5 Because Syria, Ephraim, and the son of Remaliah, have taken evil counsel against thee, saying,
Isa 7:6 Let us go up against Judah, and vex it, and let us make a breach therein for us, and set a king in the midst of it, even the son of Tabeal:
Isa 7:7 Thus saith the Lord GOD, It shall not stand, neither shall it come to pass.
Isa 7:8 For the head of Syria is Damascus, and the head of Damascus is Rezin; and within threescore and five years shall Ephraim be broken, that it be not a people.
Isa 7:9 And the head of Ephraim is Samaria, and the head of Samaria is Remaliah's son. If ye will not believe, surely ye shall not be established.
That is good wisdom for us still today. “If ye will not believe, surely ye shall not be established.” It would appear that believing is a matter of the will. It is not some unthinking emotion without a source.