'Pray for' in the Bible

came near and said unto Jeremiah the prophet, Let, we beseech thee, our supplication come before thee, and pray for us unto Jehovah thy God, for all this remnant (for we are left a few of many, as thine eyes do behold us);

For ye deceived yourselves in your own souls, when ye sent me unto Jehovah your God, saying, Pray for us unto Jehovah our God; and according to all that Jehovah our God shall say, so declare unto us, and we will do it.