Here "blood" refer to people who were killed from Saul's family. The king was responsible for them dying. AT: "for killing many of Saul's family" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# in whose place you have reigned
David reigned as king over the same people whom Saul had previously reigned. AT: "in whose place you have reigned as king" (See: [[rc://en/ta/man/translate/figs-explicit]])
# into the hand of Absalom
Here "hand" refers to control. AT: "into the control of Absalom" (See: [[rc://en/ta/man/translate/figs-metonymy]])