1 Chronicles 12:19

Some Manassites defected to David when he went with the Philistines to fight against Saul. However, they did not help the Philistines because the Philistine rulers sent David away after a discussion. They said, “It will be our heads if he defects to his master Saul.”

1 Samuel 29:2-9

As the Philistine leaders were passing in review with their units of hundreds and thousands, David and his men were passing in review behind them with Achish.

Treasury of Scripture Knowledge

Summary

And there fell some of Manasseh to David, when he came with the Philistines against Saul to battle: but they helped them not: for the lords of the Philistines upon advisement sent him away, saying, He will fall to his master Saul to the jeopardy of our heads.

When he came

Bible References

When he came

1 Samuel 29:2
As the Philistine leaders were passing in review with their units of hundreds and thousands, David and his men were passing in review behind them with Achish.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.