Ahaz recived a promise from the lord by isaiah that the line of saul would be preserved. true false

The answer is: false.

According to the passage in Isaiah 7, The message/promise the Lord God delivers to ahaz, when Jerusalem was attacked:

"Tell the king to be alert, but do not lose your temper; let him not be afraid, nor be discouraged because of the hatred of King Rezin, of the Syrians, and of King Peca. They are not dangerous.  The Syrians, together with King Peca and the Israelites, are making plans to harm King Ahaz. They combined the following:  "Let us attack the kingdom of Judah, conquer their people and force them to accept the son of Tabeal as king." - But I, the Lord, declare that it shall NOT come to pass.

The line of David would be preserved. The text does not mention the line of saul, for it is not the same line of Christ, told many times as prophecies said by prophets of the lord.

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.