"The Lord Almighty will lash them with a whip, as when he struck down Midian at the rock of Oreb; and he will raise his staff over the waters, as he did in Egypt." NIV translation
God reminds His people of two times in the past that He had delivered them from their enemy. This verse demonstrates the importance of sharing with others what God has done and is doing in our lives. By sharing, we can be used to remind others that God is there for them and that He will deliver them just as He has done for us in the past. You can share a testimony with us and we will publish it to encourage others.
"In that day their burden will be lifted from your shoulders, their yoke from your neck; the yoke will be broken because you have grown so fat." NIV translation
God's encouragement to His people is that, if they humble themselves and repent, He will rescue them from their enemies. The yoke of slavery will be broken because God will cause His people to prosper. This is a picture of what happened with the people of this time but it is also the same for us. If we turn to Him (repent), God will break the yoke of slavery to sin once and for all.
Whatever we are dealing with, God can give us the power to overcome.
"'They enter Aiath; they pass through Migron; they store supplies at Micmash. They go over the pass, and say, "We will camp overnight at Geba." Ramah trembles; Gibeah of Saul flees. Cry out, O Daughter of Gallim! Listen, O Laishah! Poor Anathoth! Madmenah is in flight; the people of Gebim take cover.'" NIV translation
This passage describes the march of the Assyrians through the land towards Jerusalem. They are spreading fear throughout the land but God is still in control and waiting for His people to cry out to Him for help. God is faithful and, if we cry out to Him, He will answer and take care of His children.