<p>2:13 <i>And again: I will put my trust in Him- </i>The fact the Lord Jesus needed to trust the Father is cited as an example of His humanity, and therefore proof of His not being an Angel- for Angels do not need to exhibit trust or faith in God. The quotation from Is. 8:17 goes on to state that God is hidden from the majority of Israel- relevant to the Hebrew Christians who were wondering how so many in Israel could be wrong, and who were returning to the majority, the broad way of Judaism. The original context speaks of the isolation of Isaiah and his family within Israel; &quot;I&quot;, even if Israel <i>en masse</i> do not, &quot;will put my trust in Him&quot;; the majority in Israel had stumbled (Is. 8:15), a figure Paul elsewhere uses about Israel's stumbling on the rock of Jesus as Messiah. And it was all because they had not truly understood God's law (Is. 8:20) which spoke so fully of Jesus as Christ.</p><p><i>And again: Behold, I and the children whom God has given me</i>- Isaiah is a confirmed type of Christ, and his school of prophets typical of the saints.&nbsp;&quot;I (Isaiah) and the children (prophets - Is. 8:16) whom the Lord hath given me&quot; (Is. 8:18) is quoted here as referring to Christ and His brethren. Other instances of Isaiah being a type of Christ can be found by comparing Is. 6:10 with John 12:39-41 and by appreciating that &quot;The spirit of the Lord God is upon me... to preach good tidings... to comfort all that mourn&quot; (e.g. Hezekiah) is primarily concerning Isaiah's message of hope to Israel during the Assyrian invasions, although it is quoted concerning Jesus (Is. 61:1,2 cp. Luke 4:18). Is. 8:16-18 could be taken as Isaiah saying that he had decided not to teach his school of prophets any longer, but rather to just personally focus upon his own relationship with God: &quot;Bind up the testimony, seal the law among my disciples. And I will wait upon the LORD, that hideth his face from the house of Jacob, and I will look for him&quot;. The next verse is however quoted in Heb. 2:13 about the Lord Jesus and His brethren being of the same nature: &quot;Behold, I and the children whom the LORD hath given me are for signs and for wonders in Israel from the LORD of hosts&quot;. The Hebrew writer therefore understood this statement to reflect an intense unity between Isaiah and his &quot;children&quot;, be they his literal children Immanuel and Mahershalalhashbaz or his spiritual children. It seems to me that Immanuel could've been some kind of Messiah figure- but for whatever reason, he didn't live up to it and the prophecy was therefore given a greater application to the Lord Jesus. Likewise, the &quot;children&quot; Isaiah refers to in Is. 8:18 became the faithful children in Christ under the new covenant, according to how Heb. 2:13 quotes it.</p>