death threat at workplace

goodpm.. i recently resign to my work place and still rendering my 30 days adjustment for turning over my duties and responsibility.. and then someone texted me last night that "May papatay sayo taga dialysis" 3 times na send i asked who he is and said "nagpapaalala lang" and he even give me the dialysis center place.. so i was bothered and dont want to go to work..if that the case i will be awol.. my company doesnt want me to resign asap.. but due to a lot of companies violations hat i know i need to move to other dialysis center and luckily i was accepted. Please advice me what to do or can i get a legal advicer which will come over at my workplace and talk to my manager ..i have all the messages print screen for proof even the contact numbers are saved. what should i do..