Sometimes, it's more powerful to say nothing at all.
The Post's empty column in Friday's edition bore Khashoggi's byline and the headline: "A missing voice".
Turkey has said it believes Khashoggi is still inside the consulate.
The journalist was recently reported to have disappeared in Turkey's Istanbul after entering the Saudi Consulate.
Since then, reports as to his whereabouts have been conflicting.
"The consulate confirmed that it is carrying out follow-up procedures and coordination with the Turkish local authorities to uncover the circumstances of the disappearance", the SPA said.More news: UFC 229 Khabib Vs McGregor Vlog Episode One
Jamal Khashoggi, who writes opinion pieces for the Washington Post, has not been seen since entering the Saudi consulate building in Istanbul on Tuesday 2 October, where he was to receive an official document for the couple's marriage.
"My understanding is he entered and he got out after a few minutes or one hour", he said in an interview with Bloomberg. "The higher price that we have in the last month, it's not because of Iran", he said. "So ever since the relationship started between Saudi Arabia and the United States of America, we've bought everything with money", the Saudi Arabian Crown Prince added. Fearing he would be arrested, he has lived in self-imposed exile in the United States since a year ago.
"Saudi Arabia was there before the United States of America".
Since his disappearance, his colleagues - as well as media freedom and human rights groups around the world - have demanded answers.
The disappearance of an outspoken Saudi critic, who was last seen walking into a Saudi consulate in Turkey, has left activists, foreign officials and friends fearing for his safety.
"Since yesterday, contacts have been continuing between Turkey and Saudi Arabia to overcome the problem related to Khashoggi", the source said. The woman told reporters that Khashoggi asked her to alert friends if he did not return, apparently anxious about being held there; though it was his second visit to the consulate in weeks for routine paperwork.More news: ‘The Walking Dead’ Actor Scott Wilson Dead At Age 76
Meanwhile, supporters of the missing dissident Saudi journalist have participated in a rally, organized by the Turkish-Arab Media Association (TAM), outside the Saudi consulate in Istanbul, calling for his "release".
"As journalists, we are anxious about the fate of Jamal". We didn't want to move fast with unknown investors.
Iran, OPEC's third-largest producer, has accused Trump of orchestrating the oil price rally by imposing sanctions on Tehran and accused its regional archrival Saudi Arabia of bowing to USA pressure.
Yemeni activist and 2011 victor of the Nobel Peace Prize Tawakkol Karman was among the demonstrators and hit out at the Saudi authorities.
His fiancee - who requested anonymity - told the Post she accompanied him but waited outside and called the police when Khashoggi did not emerge after the consulate closed.More news: Manchester City have improved too, Vincent Kompany warns Liverpool